28581760

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:144

約数の個数: 128

約数和(自身を含む): 75349440

約数和(自身を除く): 46767680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 37, 40, 64, 68, 71, 74, 80, 85, 128, 136, 142, 148, 160, 170, 185, 272, 284, 296, 320, 340, 355, 370, 544, 568, 592, 629, 640, 680, 710, 740, 1088, 1136, 1184, 1207, 1258, 1360, 1420, 1480, 2176, 2272, 2368, 2414, 2516, 2627, 2720, 2840, 2960, 3145, 4544, 4736, 4828, 5032, 5254, 5440, 5680, 5920, 6035, 6290, 9088, 9656, 10064, 10508, 10880, 11360, 11840, 12070, 12580, 13135, 19312, 20128, 21016, 22720, 23680, 24140, 25160, 26270, 38624, 40256, 42032, 44659, 45440, 48280, 50320, 52540, 77248, 80512, 84064, 89318, 96560, 100640, 105080, 154496, 168128, 178636, 193120, 201280, 210160, 223295, 336256, 357272, 386240, 402560, 420320, 446590, 714544, 772480, 840640, 893180, 1429088, 1681280, 1786360, 2858176, 3572720, 5716352, 7145440, 14290880, 28581760]

約数ペア:

[(1, 28581760), (2, 14290880), (4, 7145440), (5, 5716352), (8, 3572720), (10, 2858176), (16, 1786360), (17, 1681280), (20, 1429088), (32, 893180), (34, 840640), (37, 772480), (40, 714544), (64, 446590), (68, 420320), (71, 402560), (74, 386240), (80, 357272), (85, 336256), (128, 223295), (136, 210160), (142, 201280), (148, 193120), (160, 178636), (170, 168128), (185, 154496), (272, 105080), (284, 100640), (296, 96560), (320, 89318), (340, 84064), (355, 80512), (370, 77248), (544, 52540), (568, 50320), (592, 48280), (629, 45440), (640, 44659), (680, 42032), (710, 40256), (740, 38624), (1088, 26270), (1136, 25160), (1184, 24140), (1207, 23680), (1258, 22720), (1360, 21016), (1420, 20128), (1480, 19312), (2176, 13135), (2272, 12580), (2368, 12070), (2414, 11840), (2516, 11360), (2627, 10880), (2720, 10508), (2840, 10064), (2960, 9656), (3145, 9088), (4544, 6290), (4736, 6035), (4828, 5920), (5032, 5680), (5254, 5440)]