64972280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{347}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 152340480

約数和(自身を除く): 87368200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 151, 155, 248, 302, 310, 347, 604, 620, 694, 755, 1208, 1240, 1388, 1510, 1735, 2776, 3020, 3470, 4681, 6040, 6940, 9362, 10757, 13880, 18724, 21514, 23405, 37448, 43028, 46810, 52397, 53785, 86056, 93620, 104794, 107570, 187240, 209588, 215140, 261985, 419176, 430280, 523970, 1047940, 1624307, 2095880, 3248614, 6497228, 8121535, 12994456, 16243070, 32486140, 64972280]

約数ペア:

[(1, 64972280), (2, 32486140), (4, 16243070), (5, 12994456), (8, 8121535), (10, 6497228), (20, 3248614), (31, 2095880), (40, 1624307), (62, 1047940), (124, 523970), (151, 430280), (155, 419176), (248, 261985), (302, 215140), (310, 209588), (347, 187240), (604, 107570), (620, 104794), (694, 93620), (755, 86056), (1208, 53785), (1240, 52397), (1388, 46810), (1510, 43028), (1735, 37448), (2776, 23405), (3020, 21514), (3470, 18724), (4681, 13880), (6040, 10757), (6940, 9362)]