405772020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{72719}}^1$

素因数の和:72765

約数の個数: 72

約数和(自身を含む): 1270563840

約数和(自身を除く): 864791820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 72719, 145438, 218157, 290876, 363595, 436314, 654471, 727190, 872628, 1090785, 1308942, 1454380, 2181570, 2254289, 2617884, 3272355, 4363140, 4508578, 6544710, 6762867, 9017156, 11271445, 13089420, 13525734, 20288601, 22542890, 27051468, 33814335, 40577202, 45085780, 67628670, 81154404, 101443005, 135257340, 202886010, 405772020]

約数ペア:

[(1, 405772020), (2, 202886010), (3, 135257340), (4, 101443005), (5, 81154404), (6, 67628670), (9, 45085780), (10, 40577202), (12, 33814335), (15, 27051468), (18, 22542890), (20, 20288601), (30, 13525734), (31, 13089420), (36, 11271445), (45, 9017156), (60, 6762867), (62, 6544710), (90, 4508578), (93, 4363140), (124, 3272355), (155, 2617884), (180, 2254289), (186, 2181570), (279, 1454380), (310, 1308942), (372, 1090785), (465, 872628), (558, 727190), (620, 654471), (930, 436314), (1116, 363595), (1395, 290876), (1860, 218157), (2790, 145438), (5580, 72719)]