61981380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:230

約数の個数: 144

約数和(自身を含む): 196363440

約数和(自身を除く): 134382060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 73, 89, 90, 106, 146, 159, 178, 180, 212, 219, 265, 267, 292, 318, 356, 365, 438, 445, 477, 530, 534, 636, 657, 730, 795, 801, 876, 890, 954, 1060, 1068, 1095, 1314, 1335, 1460, 1590, 1602, 1780, 1908, 2190, 2385, 2628, 2670, 3180, 3204, 3285, 3869, 4005, 4380, 4717, 4770, 5340, 6497, 6570, 7738, 8010, 9434, 9540, 11607, 12994, 13140, 14151, 15476, 16020, 18868, 19345, 19491, 23214, 23585, 25988, 28302, 32485, 34821, 38690, 38982, 42453, 46428, 47170, 56604, 58035, 58473, 64970, 69642, 70755, 77380, 77964, 84906, 94340, 97455, 116070, 116946, 129940, 139284, 141510, 169812, 174105, 194910, 212265, 232140, 233892, 283020, 292365, 344341, 348210, 389820, 424530, 584730, 688682, 696420, 849060, 1033023, 1169460, 1377364, 1721705, 2066046, 3099069, 3443410, 4132092, 5165115, 6198138, 6886820, 10330230, 12396276, 15495345, 20660460, 30990690, 61981380]

約数ペア:

[(1, 61981380), (2, 30990690), (3, 20660460), (4, 15495345), (5, 12396276), (6, 10330230), (9, 6886820), (10, 6198138), (12, 5165115), (15, 4132092), (18, 3443410), (20, 3099069), (30, 2066046), (36, 1721705), (45, 1377364), (53, 1169460), (60, 1033023), (73, 849060), (89, 696420), (90, 688682), (106, 584730), (146, 424530), (159, 389820), (178, 348210), (180, 344341), (212, 292365), (219, 283020), (265, 233892), (267, 232140), (292, 212265), (318, 194910), (356, 174105), (365, 169812), (438, 141510), (445, 139284), (477, 129940), (530, 116946), (534, 116070), (636, 97455), (657, 94340), (730, 84906), (795, 77964), (801, 77380), (876, 70755), (890, 69642), (954, 64970), (1060, 58473), (1068, 58035), (1095, 56604), (1314, 47170), (1335, 46428), (1460, 42453), (1590, 38982), (1602, 38690), (1780, 34821), (1908, 32485), (2190, 28302), (2385, 25988), (2628, 23585), (2670, 23214), (3180, 19491), (3204, 19345), (3285, 18868), (3869, 16020), (4005, 15476), (4380, 14151), (4717, 13140), (4770, 12994), (5340, 11607), (6497, 9540), (6570, 9434), (7738, 8010)]