64644920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1409}}^1$

素因数の和:1488

約数の個数: 64

約数和(自身を含む): 154310400

約数和(自身を除く): 89665480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 740, 1147, 1240, 1409, 1480, 2294, 2818, 4588, 5636, 5735, 7045, 9176, 11272, 11470, 14090, 22940, 28180, 43679, 45880, 52133, 56360, 87358, 104266, 174716, 208532, 218395, 260665, 349432, 417064, 436790, 521330, 873580, 1042660, 1616123, 1747160, 2085320, 3232246, 6464492, 8080615, 12928984, 16161230, 32322460, 64644920]

約数ペア:

[(1, 64644920), (2, 32322460), (4, 16161230), (5, 12928984), (8, 8080615), (10, 6464492), (20, 3232246), (31, 2085320), (37, 1747160), (40, 1616123), (62, 1042660), (74, 873580), (124, 521330), (148, 436790), (155, 417064), (185, 349432), (248, 260665), (296, 218395), (310, 208532), (370, 174716), (620, 104266), (740, 87358), (1147, 56360), (1240, 52133), (1409, 45880), (1480, 43679), (2294, 28180), (2818, 22940), (4588, 14090), (5636, 11470), (5735, 11272), (7045, 9176)]