1388007920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{13759}}^1$

素因数の和:13882

約数の個数: 80

約数和(自身を含む): 3511441920

約数和(自身を除く): 2123434000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 388, 485, 520, 776, 970, 1040, 1261, 1552, 1940, 2522, 3880, 5044, 6305, 7760, 10088, 12610, 13759, 20176, 25220, 27518, 50440, 55036, 68795, 100880, 110072, 137590, 178867, 220144, 275180, 357734, 550360, 715468, 894335, 1100720, 1334623, 1430936, 1788670, 2669246, 2861872, 3577340, 5338492, 6673115, 7154680, 10676984, 13346230, 14309360, 17350099, 21353968, 26692460, 34700198, 53384920, 69400396, 86750495, 106769840, 138800792, 173500990, 277601584, 347001980, 694003960, 1388007920]

約数ペア:

[(1, 1388007920), (2, 694003960), (4, 347001980), (5, 277601584), (8, 173500990), (10, 138800792), (13, 106769840), (16, 86750495), (20, 69400396), (26, 53384920), (40, 34700198), (52, 26692460), (65, 21353968), (80, 17350099), (97, 14309360), (104, 13346230), (130, 10676984), (194, 7154680), (208, 6673115), (260, 5338492), (388, 3577340), (485, 2861872), (520, 2669246), (776, 1788670), (970, 1430936), (1040, 1334623), (1261, 1100720), (1552, 894335), (1940, 715468), (2522, 550360), (3880, 357734), (5044, 275180), (6305, 220144), (7760, 178867), (10088, 137590), (12610, 110072), (13759, 100880), (20176, 68795), (25220, 55036), (27518, 50440)]