1001086720

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25229}}^1$

素因数の和:25281

約数の個数: 72

約数和(自身を含む): 2475365760

約数和(自身を除く): 1474279040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 25229, 39680, 50458, 100916, 126145, 201832, 252290, 403664, 504580, 782099, 807328, 1009160, 1564198, 1614656, 2018320, 3128396, 3229312, 3910495, 4036640, 6256792, 6458624, 7820990, 8073280, 12513584, 15641980, 16146560, 25027168, 31283960, 32293120, 50054336, 62567920, 100108672, 125135840, 200217344, 250271680, 500543360, 1001086720]

約数ペア:

[(1, 1001086720), (2, 500543360), (4, 250271680), (5, 200217344), (8, 125135840), (10, 100108672), (16, 62567920), (20, 50054336), (31, 32293120), (32, 31283960), (40, 25027168), (62, 16146560), (64, 15641980), (80, 12513584), (124, 8073280), (128, 7820990), (155, 6458624), (160, 6256792), (248, 4036640), (256, 3910495), (310, 3229312), (320, 3128396), (496, 2018320), (620, 1614656), (640, 1564198), (992, 1009160), (1240, 807328), (1280, 782099), (1984, 504580), (2480, 403664), (3968, 252290), (4960, 201832), (7936, 126145), (9920, 100916), (19840, 50458), (25229, 39680)]