20116975420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{383}}^1\times {\mathrm{499}}^1$

素因数の和:1187

約数の個数: 96

約数和(自身を含む): 44835840000

約数和(自身を除く): 24718864580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 277, 380, 383, 499, 554, 766, 998, 1108, 1385, 1532, 1915, 1996, 2495, 2770, 3830, 4990, 5263, 5540, 7277, 7660, 9481, 9980, 10526, 14554, 18962, 21052, 26315, 29108, 36385, 37924, 47405, 52630, 72770, 94810, 105260, 106091, 138223, 145540, 189620, 191117, 212182, 276446, 382234, 424364, 530455, 552892, 691115, 764468, 955585, 1060910, 1382230, 1911170, 2015729, 2121820, 2626237, 2764460, 3631223, 3822340, 4031458, 5252474, 7262446, 8062916, 10078645, 10504948, 13131185, 14524892, 18156115, 20157290, 26262370, 36312230, 40314580, 52524740, 52939409, 72624460, 105878818, 211757636, 264697045, 529394090, 1005848771, 1058788180, 2011697542, 4023395084, 5029243855, 10058487710, 20116975420]

約数ペア:

[(1, 20116975420), (2, 10058487710), (4, 5029243855), (5, 4023395084), (10, 2011697542), (19, 1058788180), (20, 1005848771), (38, 529394090), (76, 264697045), (95, 211757636), (190, 105878818), (277, 72624460), (380, 52939409), (383, 52524740), (499, 40314580), (554, 36312230), (766, 26262370), (998, 20157290), (1108, 18156115), (1385, 14524892), (1532, 13131185), (1915, 10504948), (1996, 10078645), (2495, 8062916), (2770, 7262446), (3830, 5252474), (4990, 4031458), (5263, 3822340), (5540, 3631223), (7277, 2764460), (7660, 2626237), (9481, 2121820), (9980, 2015729), (10526, 1911170), (14554, 1382230), (18962, 1060910), (21052, 955585), (26315, 764468), (29108, 691115), (36385, 552892), (37924, 530455), (47405, 424364), (52630, 382234), (72770, 276446), (94810, 212182), (105260, 191117), (106091, 189620), (138223, 145540)]