18949840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:189

約数の個数: 160

約数和(自身を含む): 57496320

約数和(自身を除く): 38546480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 80, 91, 95, 104, 112, 130, 133, 137, 140, 152, 182, 190, 208, 247, 260, 266, 274, 280, 304, 364, 380, 455, 494, 520, 532, 548, 560, 665, 685, 728, 760, 910, 959, 988, 1040, 1064, 1096, 1235, 1330, 1370, 1456, 1520, 1729, 1781, 1820, 1918, 1976, 2128, 2192, 2470, 2603, 2660, 2740, 3458, 3562, 3640, 3836, 3952, 4795, 4940, 5206, 5320, 5480, 6916, 7124, 7280, 7672, 8645, 8905, 9590, 9880, 10412, 10640, 10960, 12467, 13015, 13832, 14248, 15344, 17290, 17810, 18221, 19180, 19760, 20824, 24934, 26030, 27664, 28496, 33839, 34580, 35620, 36442, 38360, 41648, 49868, 52060, 62335, 67678, 69160, 71240, 72884, 76720, 91105, 99736, 104120, 124670, 135356, 138320, 142480, 145768, 169195, 182210, 199472, 208240, 236873, 249340, 270712, 291536, 338390, 364420, 473746, 498680, 541424, 676780, 728840, 947492, 997360, 1184365, 1353560, 1457680, 1894984, 2368730, 2707120, 3789968, 4737460, 9474920, 18949840]

約数ペア:

[(1, 18949840), (2, 9474920), (4, 4737460), (5, 3789968), (7, 2707120), (8, 2368730), (10, 1894984), (13, 1457680), (14, 1353560), (16, 1184365), (19, 997360), (20, 947492), (26, 728840), (28, 676780), (35, 541424), (38, 498680), (40, 473746), (52, 364420), (56, 338390), (65, 291536), (70, 270712), (76, 249340), (80, 236873), (91, 208240), (95, 199472), (104, 182210), (112, 169195), (130, 145768), (133, 142480), (137, 138320), (140, 135356), (152, 124670), (182, 104120), (190, 99736), (208, 91105), (247, 76720), (260, 72884), (266, 71240), (274, 69160), (280, 67678), (304, 62335), (364, 52060), (380, 49868), (455, 41648), (494, 38360), (520, 36442), (532, 35620), (548, 34580), (560, 33839), (665, 28496), (685, 27664), (728, 26030), (760, 24934), (910, 20824), (959, 19760), (988, 19180), (1040, 18221), (1064, 17810), (1096, 17290), (1235, 15344), (1330, 14248), (1370, 13832), (1456, 13015), (1520, 12467), (1729, 10960), (1781, 10640), (1820, 10412), (1918, 9880), (1976, 9590), (2128, 8905), (2192, 8645), (2470, 7672), (2603, 7280), (2660, 7124), (2740, 6916), (3458, 5480), (3562, 5320), (3640, 5206), (3836, 4940), (3952, 4795)]