80690520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:353

約数の個数: 128

約数和(自身を含む): 253440000

約数和(自身を除く): 172749480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 109, 120, 124, 155, 186, 199, 218, 248, 310, 327, 372, 398, 436, 465, 545, 597, 620, 654, 744, 796, 872, 930, 995, 1090, 1194, 1240, 1308, 1592, 1635, 1860, 1990, 2180, 2388, 2616, 2985, 3270, 3379, 3720, 3980, 4360, 4776, 5970, 6169, 6540, 6758, 7960, 10137, 11940, 12338, 13080, 13516, 16895, 18507, 20274, 21691, 23880, 24676, 27032, 30845, 33790, 37014, 40548, 43382, 49352, 50685, 61690, 65073, 67580, 74028, 81096, 86764, 92535, 101370, 108455, 123380, 130146, 135160, 148056, 173528, 185070, 202740, 216910, 246760, 260292, 325365, 370140, 405480, 433820, 520584, 650730, 672421, 740280, 867640, 1301460, 1344842, 2017263, 2602920, 2689684, 3362105, 4034526, 5379368, 6724210, 8069052, 10086315, 13448420, 16138104, 20172630, 26896840, 40345260, 80690520]

約数ペア:

[(1, 80690520), (2, 40345260), (3, 26896840), (4, 20172630), (5, 16138104), (6, 13448420), (8, 10086315), (10, 8069052), (12, 6724210), (15, 5379368), (20, 4034526), (24, 3362105), (30, 2689684), (31, 2602920), (40, 2017263), (60, 1344842), (62, 1301460), (93, 867640), (109, 740280), (120, 672421), (124, 650730), (155, 520584), (186, 433820), (199, 405480), (218, 370140), (248, 325365), (310, 260292), (327, 246760), (372, 216910), (398, 202740), (436, 185070), (465, 173528), (545, 148056), (597, 135160), (620, 130146), (654, 123380), (744, 108455), (796, 101370), (872, 92535), (930, 86764), (995, 81096), (1090, 74028), (1194, 67580), (1240, 65073), (1308, 61690), (1592, 50685), (1635, 49352), (1860, 43382), (1990, 40548), (2180, 37014), (2388, 33790), (2616, 30845), (2985, 27032), (3270, 24676), (3379, 23880), (3720, 21691), (3980, 20274), (4360, 18507), (4776, 16895), (5970, 13516), (6169, 13080), (6540, 12338), (6758, 11940), (7960, 10137)]