643950120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6871}}^1$

素因数の和:6967

約数の個数: 128

約数和(自身を含む): 2137466880

約数和(自身を除く): 1493516760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 71, 88, 110, 120, 132, 142, 165, 213, 220, 264, 284, 330, 355, 426, 440, 568, 660, 710, 781, 852, 1065, 1320, 1420, 1562, 1704, 2130, 2343, 2840, 3124, 3905, 4260, 4686, 6248, 6871, 7810, 8520, 9372, 11715, 13742, 15620, 18744, 20613, 23430, 27484, 31240, 34355, 41226, 46860, 54968, 68710, 75581, 82452, 93720, 103065, 137420, 151162, 164904, 206130, 226743, 274840, 302324, 377905, 412260, 453486, 487841, 604648, 755810, 824520, 906972, 975682, 1133715, 1463523, 1511620, 1813944, 1951364, 2267430, 2439205, 2927046, 3023240, 3902728, 4534860, 4878410, 5366251, 5854092, 7317615, 9069720, 9756820, 10732502, 11708184, 14635230, 16098753, 19513640, 21465004, 26831255, 29270460, 32197506, 42930008, 53662510, 58540920, 64395012, 80493765, 107325020, 128790024, 160987530, 214650040, 321975060, 643950120]

約数ペア:

[(1, 643950120), (2, 321975060), (3, 214650040), (4, 160987530), (5, 128790024), (6, 107325020), (8, 80493765), (10, 64395012), (11, 58540920), (12, 53662510), (15, 42930008), (20, 32197506), (22, 29270460), (24, 26831255), (30, 21465004), (33, 19513640), (40, 16098753), (44, 14635230), (55, 11708184), (60, 10732502), (66, 9756820), (71, 9069720), (88, 7317615), (110, 5854092), (120, 5366251), (132, 4878410), (142, 4534860), (165, 3902728), (213, 3023240), (220, 2927046), (264, 2439205), (284, 2267430), (330, 1951364), (355, 1813944), (426, 1511620), (440, 1463523), (568, 1133715), (660, 975682), (710, 906972), (781, 824520), (852, 755810), (1065, 604648), (1320, 487841), (1420, 453486), (1562, 412260), (1704, 377905), (2130, 302324), (2343, 274840), (2840, 226743), (3124, 206130), (3905, 164904), (4260, 151162), (4686, 137420), (6248, 103065), (6871, 93720), (7810, 82452), (8520, 75581), (9372, 68710), (11715, 54968), (13742, 46860), (15620, 41226), (18744, 34355), (20613, 31240), (23430, 27484)]