128156901628

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{557}}^1\times {\mathrm{31727}}^1$

素因数の和:32339

約数の個数: 72

約数和(自身を含む): 268431444288

約数和(自身を除く): 140274542660

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 518, 557, 1036, 1114, 1813, 2228, 3626, 3899, 7252, 7798, 15596, 20609, 27293, 31727, 41218, 54586, 63454, 82436, 109172, 126908, 144263, 222089, 288526, 444178, 577052, 888356, 1009841, 1173899, 1554623, 2019682, 2347798, 3109246, 4039364, 4695596, 6218492, 8217293, 16434586, 17671939, 32869172, 35343878, 57521051, 70687756, 115042102, 123703573, 230084204, 247407146, 494814292, 653861743, 865925011, 1307723486, 1731850022, 2615446972, 3463700044, 4577032201, 9154064402, 18308128804, 32039225407, 64078450814, 128156901628]

約数ペア:

[(1, 128156901628), (2, 64078450814), (4, 32039225407), (7, 18308128804), (14, 9154064402), (28, 4577032201), (37, 3463700044), (49, 2615446972), (74, 1731850022), (98, 1307723486), (148, 865925011), (196, 653861743), (259, 494814292), (518, 247407146), (557, 230084204), (1036, 123703573), (1114, 115042102), (1813, 70687756), (2228, 57521051), (3626, 35343878), (3899, 32869172), (7252, 17671939), (7798, 16434586), (15596, 8217293), (20609, 6218492), (27293, 4695596), (31727, 4039364), (41218, 3109246), (54586, 2347798), (63454, 2019682), (82436, 1554623), (109172, 1173899), (126908, 1009841), (144263, 888356), (222089, 577052), (288526, 444178)]