65345420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{509}}^1$

素因数の和:663

約数の個数: 72

約数和(自身を含む): 161164080

約数和(自身を除く): 95818660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 131, 140, 196, 245, 262, 490, 509, 524, 655, 917, 980, 1018, 1310, 1834, 2036, 2545, 2620, 3563, 3668, 4585, 5090, 6419, 7126, 9170, 10180, 12838, 14252, 17815, 18340, 24941, 25676, 32095, 35630, 49882, 64190, 66679, 71260, 99764, 124705, 128380, 133358, 249410, 266716, 333395, 466753, 498820, 666790, 933506, 1333580, 1867012, 2333765, 3267271, 4667530, 6534542, 9335060, 13069084, 16336355, 32672710, 65345420]

約数ペア:

[(1, 65345420), (2, 32672710), (4, 16336355), (5, 13069084), (7, 9335060), (10, 6534542), (14, 4667530), (20, 3267271), (28, 2333765), (35, 1867012), (49, 1333580), (70, 933506), (98, 666790), (131, 498820), (140, 466753), (196, 333395), (245, 266716), (262, 249410), (490, 133358), (509, 128380), (524, 124705), (655, 99764), (917, 71260), (980, 66679), (1018, 64190), (1310, 49882), (1834, 35630), (2036, 32095), (2545, 25676), (2620, 24941), (3563, 18340), (3668, 17815), (4585, 14252), (5090, 12838), (6419, 10180), (7126, 9170)]