193986520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:557

約数の個数: 128

約数和(自身を含む): 542505600

約数和(自身を除く): 348519080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 137, 140, 182, 260, 274, 280, 364, 389, 455, 520, 548, 685, 728, 778, 910, 959, 1096, 1370, 1556, 1781, 1820, 1918, 1945, 2723, 2740, 3112, 3562, 3640, 3836, 3890, 4795, 5057, 5446, 5480, 7124, 7672, 7780, 8905, 9590, 10114, 10892, 12467, 13615, 14248, 15560, 17810, 19180, 20228, 21784, 24934, 25285, 27230, 35399, 35620, 38360, 40456, 49868, 50570, 53293, 54460, 62335, 70798, 71240, 99736, 101140, 106586, 108920, 124670, 141596, 176995, 202280, 213172, 249340, 266465, 283192, 353990, 373051, 426344, 498680, 532930, 692809, 707980, 746102, 1065860, 1385618, 1415960, 1492204, 1865255, 2131720, 2771236, 2984408, 3464045, 3730510, 4849663, 5542472, 6928090, 7461020, 9699326, 13856180, 14922040, 19398652, 24248315, 27712360, 38797304, 48496630, 96993260, 193986520]

約数ペア:

[(1, 193986520), (2, 96993260), (4, 48496630), (5, 38797304), (7, 27712360), (8, 24248315), (10, 19398652), (13, 14922040), (14, 13856180), (20, 9699326), (26, 7461020), (28, 6928090), (35, 5542472), (40, 4849663), (52, 3730510), (56, 3464045), (65, 2984408), (70, 2771236), (91, 2131720), (104, 1865255), (130, 1492204), (137, 1415960), (140, 1385618), (182, 1065860), (260, 746102), (274, 707980), (280, 692809), (364, 532930), (389, 498680), (455, 426344), (520, 373051), (548, 353990), (685, 283192), (728, 266465), (778, 249340), (910, 213172), (959, 202280), (1096, 176995), (1370, 141596), (1556, 124670), (1781, 108920), (1820, 106586), (1918, 101140), (1945, 99736), (2723, 71240), (2740, 70798), (3112, 62335), (3562, 54460), (3640, 53293), (3836, 50570), (3890, 49868), (4795, 40456), (5057, 38360), (5446, 35620), (5480, 35399), (7124, 27230), (7672, 25285), (7780, 24934), (8905, 21784), (9590, 20228), (10114, 19180), (10892, 17810), (12467, 15560), (13615, 14248)]