261478181377

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{2357}}^1$

素因数の和:2686

約数の個数: 64

約数和(自身を含む): 322710220800

約数和(自身を除く): 61232039423

約数列:

[1, 7, 29, 43, 71, 179, 203, 301, 497, 1247, 1253, 2059, 2357, 3053, 5191, 7697, 8729, 12709, 14413, 16499, 21371, 36337, 53879, 68353, 88537, 88963, 101351, 167347, 223213, 368561, 421903, 478471, 546487, 619759, 709457, 1171429, 1562491, 2579927, 2939179, 2953321, 3825409, 4853063, 7195921, 12235187, 15848123, 18141829, 20574253, 29955113, 33971441, 50371447, 85646309, 110936861, 126992803, 208681709, 209685791, 526113041, 868698277, 1288069859, 1460771963, 3682791287, 6080887939, 9016489013, 37354025911, 261478181377]

約数ペア:

[(1, 261478181377), (7, 37354025911), (29, 9016489013), (43, 6080887939), (71, 3682791287), (179, 1460771963), (203, 1288069859), (301, 868698277), (497, 526113041), (1247, 209685791), (1253, 208681709), (2059, 126992803), (2357, 110936861), (3053, 85646309), (5191, 50371447), (7697, 33971441), (8729, 29955113), (12709, 20574253), (14413, 18141829), (16499, 15848123), (21371, 12235187), (36337, 7195921), (53879, 4853063), (68353, 3825409), (88537, 2953321), (88963, 2939179), (101351, 2579927), (167347, 1562491), (223213, 1171429), (368561, 709457), (421903, 619759), (478471, 546487)]