20153178836

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{25307}}^1$

素因数の和:25581

約数の個数: 72

約数和(自身を含む): 43622893440

約数和(自身を除く): 23469714604

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 239, 476, 478, 833, 956, 1666, 1673, 3332, 3346, 4063, 6692, 8126, 11711, 16252, 23422, 25307, 28441, 46844, 50614, 56882, 101228, 113764, 177149, 199087, 354298, 398174, 430219, 708596, 796348, 860438, 1240043, 1720876, 2480086, 3011533, 4960172, 6023066, 6048373, 12046132, 12096746, 21080731, 24193492, 42161462, 42338611, 84322924, 84677222, 102822341, 169354444, 205644682, 296370277, 411289364, 592740554, 719756387, 1185481108, 1439512774, 2879025548, 5038294709, 10076589418, 20153178836]

約数ペア:

[(1, 20153178836), (2, 10076589418), (4, 5038294709), (7, 2879025548), (14, 1439512774), (17, 1185481108), (28, 719756387), (34, 592740554), (49, 411289364), (68, 296370277), (98, 205644682), (119, 169354444), (196, 102822341), (238, 84677222), (239, 84322924), (476, 42338611), (478, 42161462), (833, 24193492), (956, 21080731), (1666, 12096746), (1673, 12046132), (3332, 6048373), (3346, 6023066), (4063, 4960172), (6692, 3011533), (8126, 2480086), (11711, 1720876), (16252, 1240043), (23422, 860438), (25307, 796348), (28441, 708596), (46844, 430219), (50614, 398174), (56882, 354298), (101228, 199087), (113764, 177149)]