321574920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:495

約数の個数: 128

約数和(自身を含む): 989936640

約数和(自身を除く): 668361720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 197, 223, 244, 305, 366, 394, 446, 488, 591, 610, 669, 732, 788, 892, 915, 985, 1115, 1182, 1220, 1338, 1464, 1576, 1784, 1830, 1970, 2230, 2364, 2440, 2676, 2955, 3345, 3660, 3940, 4460, 4728, 5352, 5910, 6690, 7320, 7880, 8920, 11820, 12017, 13380, 13603, 23640, 24034, 26760, 27206, 36051, 40809, 43931, 48068, 54412, 60085, 68015, 72102, 81618, 87862, 96136, 108824, 120170, 131793, 136030, 144204, 163236, 175724, 180255, 204045, 219655, 240340, 263586, 272060, 288408, 326472, 351448, 360510, 408090, 439310, 480680, 527172, 544120, 658965, 721020, 816180, 878620, 1054344, 1317930, 1442040, 1632360, 1757240, 2635860, 2679791, 5271720, 5359582, 8039373, 10719164, 13398955, 16078746, 21438328, 26797910, 32157492, 40196865, 53595820, 64314984, 80393730, 107191640, 160787460, 321574920]

約数ペア:

[(1, 321574920), (2, 160787460), (3, 107191640), (4, 80393730), (5, 64314984), (6, 53595820), (8, 40196865), (10, 32157492), (12, 26797910), (15, 21438328), (20, 16078746), (24, 13398955), (30, 10719164), (40, 8039373), (60, 5359582), (61, 5271720), (120, 2679791), (122, 2635860), (183, 1757240), (197, 1632360), (223, 1442040), (244, 1317930), (305, 1054344), (366, 878620), (394, 816180), (446, 721020), (488, 658965), (591, 544120), (610, 527172), (669, 480680), (732, 439310), (788, 408090), (892, 360510), (915, 351448), (985, 326472), (1115, 288408), (1182, 272060), (1220, 263586), (1338, 240340), (1464, 219655), (1576, 204045), (1784, 180255), (1830, 175724), (1970, 163236), (2230, 144204), (2364, 136030), (2440, 131793), (2676, 120170), (2955, 108824), (3345, 96136), (3660, 87862), (3940, 81618), (4460, 72102), (4728, 68015), (5352, 60085), (5910, 54412), (6690, 48068), (7320, 43931), (7880, 40809), (8920, 36051), (11820, 27206), (12017, 26760), (13380, 24034), (13603, 23640)]