19811666498

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{2399}}^1$

素因数の和:2643

約数の個数: 64

約数和(自身を含む): 33597849600

約数和(自身を除く): 13786183102

約数列:

[1, 2, 13, 26, 41, 61, 82, 122, 127, 254, 533, 793, 1066, 1586, 1651, 2399, 2501, 3302, 4798, 5002, 5207, 7747, 10414, 15494, 31187, 32513, 62374, 65026, 67691, 98359, 100711, 135382, 146339, 196718, 201422, 292678, 304673, 317627, 609346, 635254, 1278667, 1902407, 2557334, 3804814, 3960749, 4129151, 5999899, 7921498, 8258302, 11999798, 12491593, 18585053, 24983186, 37170106, 77998687, 155997374, 162390709, 241605689, 324781418, 483211378, 761987173, 1523974346, 9905833249, 19811666498]

約数ペア:

[(1, 19811666498), (2, 9905833249), (13, 1523974346), (26, 761987173), (41, 483211378), (61, 324781418), (82, 241605689), (122, 162390709), (127, 155997374), (254, 77998687), (533, 37170106), (793, 24983186), (1066, 18585053), (1586, 12491593), (1651, 11999798), (2399, 8258302), (2501, 7921498), (3302, 5999899), (4798, 4129151), (5002, 3960749), (5207, 3804814), (7747, 2557334), (10414, 1902407), (15494, 1278667), (31187, 635254), (32513, 609346), (62374, 317627), (65026, 304673), (67691, 292678), (98359, 201422), (100711, 196718), (135382, 146339)]