39975960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2543}}^1$

素因数の和:2688

約数の個数: 64

約数和(自身を含む): 120890880

約数和(自身を除く): 80914920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2543, 2620, 3144, 3930, 5086, 5240, 7629, 7860, 10172, 12715, 15258, 15720, 20344, 25430, 30516, 38145, 50860, 61032, 76290, 101720, 152580, 305160, 333133, 666266, 999399, 1332532, 1665665, 1998798, 2665064, 3331330, 3997596, 4996995, 6662660, 7995192, 9993990, 13325320, 19987980, 39975960]

約数ペア:

[(1, 39975960), (2, 19987980), (3, 13325320), (4, 9993990), (5, 7995192), (6, 6662660), (8, 4996995), (10, 3997596), (12, 3331330), (15, 2665064), (20, 1998798), (24, 1665665), (30, 1332532), (40, 999399), (60, 666266), (120, 333133), (131, 305160), (262, 152580), (393, 101720), (524, 76290), (655, 61032), (786, 50860), (1048, 38145), (1310, 30516), (1572, 25430), (1965, 20344), (2543, 15720), (2620, 15258), (3144, 12715), (3930, 10172), (5086, 7860), (5240, 7629)]