217751640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{617}}^1$

素因数の和:821

約数の個数: 128

約数和(自身を含む): 696807360

約数和(自身を除く): 479055720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 173, 204, 255, 340, 346, 408, 510, 519, 617, 680, 692, 865, 1020, 1038, 1234, 1384, 1730, 1851, 2040, 2076, 2468, 2595, 2941, 3085, 3460, 3702, 4152, 4936, 5190, 5882, 6170, 6920, 7404, 8823, 9255, 10380, 10489, 11764, 12340, 14705, 14808, 17646, 18510, 20760, 20978, 23528, 24680, 29410, 31467, 35292, 37020, 41956, 44115, 52445, 58820, 62934, 70584, 74040, 83912, 88230, 104890, 106741, 117640, 125868, 157335, 176460, 209780, 213482, 251736, 314670, 320223, 352920, 419560, 426964, 533705, 629340, 640446, 853928, 1067410, 1258680, 1280892, 1601115, 1814597, 2134820, 2561784, 3202230, 3629194, 4269640, 5443791, 6404460, 7258388, 9072985, 10887582, 12808920, 14516776, 18145970, 21775164, 27218955, 36291940, 43550328, 54437910, 72583880, 108875820, 217751640]

約数ペア:

[(1, 217751640), (2, 108875820), (3, 72583880), (4, 54437910), (5, 43550328), (6, 36291940), (8, 27218955), (10, 21775164), (12, 18145970), (15, 14516776), (17, 12808920), (20, 10887582), (24, 9072985), (30, 7258388), (34, 6404460), (40, 5443791), (51, 4269640), (60, 3629194), (68, 3202230), (85, 2561784), (102, 2134820), (120, 1814597), (136, 1601115), (170, 1280892), (173, 1258680), (204, 1067410), (255, 853928), (340, 640446), (346, 629340), (408, 533705), (510, 426964), (519, 419560), (617, 352920), (680, 320223), (692, 314670), (865, 251736), (1020, 213482), (1038, 209780), (1234, 176460), (1384, 157335), (1730, 125868), (1851, 117640), (2040, 106741), (2076, 104890), (2468, 88230), (2595, 83912), (2941, 74040), (3085, 70584), (3460, 62934), (3702, 58820), (4152, 52445), (4936, 44115), (5190, 41956), (5882, 37020), (6170, 35292), (6920, 31467), (7404, 29410), (8823, 24680), (9255, 23528), (10380, 20978), (10489, 20760), (11764, 18510), (12340, 17646), (14705, 14808)]