31042620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:440

約数の個数: 144

約数和(自身を含む): 109444608

約数和(自身を除く): 78401988

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 71, 84, 90, 105, 126, 140, 142, 180, 210, 213, 252, 284, 315, 347, 355, 420, 426, 497, 630, 639, 694, 710, 852, 994, 1041, 1065, 1260, 1278, 1388, 1420, 1491, 1735, 1988, 2082, 2130, 2429, 2485, 2556, 2982, 3123, 3195, 3470, 4164, 4260, 4473, 4858, 4970, 5205, 5964, 6246, 6390, 6940, 7287, 7455, 8946, 9716, 9940, 10410, 12145, 12492, 12780, 14574, 14910, 15615, 17892, 20820, 21861, 22365, 24290, 24637, 29148, 29820, 31230, 36435, 43722, 44730, 48580, 49274, 62460, 72870, 73911, 87444, 89460, 98548, 109305, 123185, 145740, 147822, 172459, 218610, 221733, 246370, 295644, 344918, 369555, 437220, 443466, 492740, 517377, 689836, 739110, 862295, 886932, 1034754, 1108665, 1478220, 1552131, 1724590, 2069508, 2217330, 2586885, 3104262, 3449180, 4434660, 5173770, 6208524, 7760655, 10347540, 15521310, 31042620]

約数ペア:

[(1, 31042620), (2, 15521310), (3, 10347540), (4, 7760655), (5, 6208524), (6, 5173770), (7, 4434660), (9, 3449180), (10, 3104262), (12, 2586885), (14, 2217330), (15, 2069508), (18, 1724590), (20, 1552131), (21, 1478220), (28, 1108665), (30, 1034754), (35, 886932), (36, 862295), (42, 739110), (45, 689836), (60, 517377), (63, 492740), (70, 443466), (71, 437220), (84, 369555), (90, 344918), (105, 295644), (126, 246370), (140, 221733), (142, 218610), (180, 172459), (210, 147822), (213, 145740), (252, 123185), (284, 109305), (315, 98548), (347, 89460), (355, 87444), (420, 73911), (426, 72870), (497, 62460), (630, 49274), (639, 48580), (694, 44730), (710, 43722), (852, 36435), (994, 31230), (1041, 29820), (1065, 29148), (1260, 24637), (1278, 24290), (1388, 22365), (1420, 21861), (1491, 20820), (1735, 17892), (1988, 15615), (2082, 14910), (2130, 14574), (2429, 12780), (2485, 12492), (2556, 12145), (2982, 10410), (3123, 9940), (3195, 9716), (3470, 8946), (4164, 7455), (4260, 7287), (4473, 6940), (4858, 6390), (4970, 6246), (5205, 5964)]