1557705920

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:251

約数の個数: 224

約数和(自身を含む): 4127967360

約数和(自身を除く): 2570261440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 37, 40, 64, 68, 71, 74, 80, 85, 109, 136, 142, 148, 160, 170, 185, 218, 272, 284, 296, 320, 340, 355, 370, 436, 544, 545, 568, 592, 629, 680, 710, 740, 872, 1088, 1090, 1136, 1184, 1207, 1258, 1360, 1420, 1480, 1744, 1853, 2180, 2272, 2368, 2414, 2516, 2627, 2720, 2840, 2960, 3145, 3488, 3706, 4033, 4360, 4544, 4828, 5032, 5254, 5440, 5680, 5920, 6035, 6290, 6976, 7412, 7739, 8066, 8720, 9265, 9656, 10064, 10508, 11360, 11840, 12070, 12580, 13135, 14824, 15478, 16132, 17440, 18530, 19312, 20128, 20165, 21016, 22720, 24140, 25160, 26270, 29648, 30956, 32264, 34880, 37060, 38624, 38695, 40256, 40330, 42032, 44659, 48280, 50320, 52540, 59296, 61912, 64528, 68561, 74120, 77248, 77390, 80660, 84064, 89318, 96560, 100640, 105080, 118592, 123824, 129056, 131563, 137122, 148240, 154780, 161320, 168128, 178636, 193120, 201280, 210160, 223295, 247648, 258112, 263126, 274244, 286343, 296480, 309560, 322640, 342805, 357272, 386240, 420320, 446590, 495296, 526252, 548488, 572686, 592960, 619120, 645280, 657815, 685610, 714544, 840640, 893180, 1052504, 1096976, 1145372, 1238240, 1290560, 1315630, 1371220, 1429088, 1431715, 1786360, 2105008, 2193952, 2290744, 2476480, 2631260, 2742440, 2858176, 2863430, 3572720, 4210016, 4387904, 4581488, 4867831, 5262520, 5484880, 5726860, 7145440, 8420032, 9162976, 9735662, 10525040, 10969760, 11453720, 14290880, 18325952, 19471324, 21050080, 21939520, 22907440, 24339155, 38942648, 42100160, 45814880, 48678310, 77885296, 91629760, 97356620, 155770592, 194713240, 311541184, 389426480, 778852960, 1557705920]

約数ペア:

[(1, 1557705920), (2, 778852960), (4, 389426480), (5, 311541184), (8, 194713240), (10, 155770592), (16, 97356620), (17, 91629760), (20, 77885296), (32, 48678310), (34, 45814880), (37, 42100160), (40, 38942648), (64, 24339155), (68, 22907440), (71, 21939520), (74, 21050080), (80, 19471324), (85, 18325952), (109, 14290880), (136, 11453720), (142, 10969760), (148, 10525040), (160, 9735662), (170, 9162976), (185, 8420032), (218, 7145440), (272, 5726860), (284, 5484880), (296, 5262520), (320, 4867831), (340, 4581488), (355, 4387904), (370, 4210016), (436, 3572720), (544, 2863430), (545, 2858176), (568, 2742440), (592, 2631260), (629, 2476480), (680, 2290744), (710, 2193952), (740, 2105008), (872, 1786360), (1088, 1431715), (1090, 1429088), (1136, 1371220), (1184, 1315630), (1207, 1290560), (1258, 1238240), (1360, 1145372), (1420, 1096976), (1480, 1052504), (1744, 893180), (1853, 840640), (2180, 714544), (2272, 685610), (2368, 657815), (2414, 645280), (2516, 619120), (2627, 592960), (2720, 572686), (2840, 548488), (2960, 526252), (3145, 495296), (3488, 446590), (3706, 420320), (4033, 386240), (4360, 357272), (4544, 342805), (4828, 322640), (5032, 309560), (5254, 296480), (5440, 286343), (5680, 274244), (5920, 263126), (6035, 258112), (6290, 247648), (6976, 223295), (7412, 210160), (7739, 201280), (8066, 193120), (8720, 178636), (9265, 168128), (9656, 161320), (10064, 154780), (10508, 148240), (11360, 137122), (11840, 131563), (12070, 129056), (12580, 123824), (13135, 118592), (14824, 105080), (15478, 100640), (16132, 96560), (17440, 89318), (18530, 84064), (19312, 80660), (20128, 77390), (20165, 77248), (21016, 74120), (22720, 68561), (24140, 64528), (25160, 61912), (26270, 59296), (29648, 52540), (30956, 50320), (32264, 48280), (34880, 44659), (37060, 42032), (38624, 40330), (38695, 40256)]