1901002040

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{127}}^1\times {\mathrm{1091}}^1$

素因数の和:1250

約数の個数: 128

約数和(自身を含む): 5031936000

約数和(自身を除く): 3130933960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 127, 140, 196, 245, 254, 280, 343, 392, 490, 508, 635, 686, 889, 980, 1016, 1091, 1270, 1372, 1715, 1778, 1960, 2182, 2540, 2744, 3430, 3556, 4364, 4445, 5080, 5455, 6223, 6860, 7112, 7637, 8728, 8890, 10910, 12446, 13720, 15274, 17780, 21820, 24892, 30548, 31115, 35560, 38185, 43561, 43640, 49784, 53459, 61096, 62230, 76370, 87122, 106918, 124460, 138557, 152740, 174244, 213836, 217805, 248920, 267295, 277114, 305480, 348488, 374213, 427672, 435610, 534590, 554228, 692785, 748426, 871220, 969899, 1069180, 1108456, 1385570, 1496852, 1742440, 1871065, 1939798, 2138360, 2771140, 2993704, 3742130, 3879596, 4849495, 5542280, 6789293, 7484260, 7759192, 9698990, 13578586, 14968520, 19397980, 27157172, 33946465, 38795960, 47525051, 54314344, 67892930, 95050102, 135785860, 190100204, 237625255, 271571720, 380200408, 475250510, 950501020, 1901002040]

約数ペア:

[(1, 1901002040), (2, 950501020), (4, 475250510), (5, 380200408), (7, 271571720), (8, 237625255), (10, 190100204), (14, 135785860), (20, 95050102), (28, 67892930), (35, 54314344), (40, 47525051), (49, 38795960), (56, 33946465), (70, 27157172), (98, 19397980), (127, 14968520), (140, 13578586), (196, 9698990), (245, 7759192), (254, 7484260), (280, 6789293), (343, 5542280), (392, 4849495), (490, 3879596), (508, 3742130), (635, 2993704), (686, 2771140), (889, 2138360), (980, 1939798), (1016, 1871065), (1091, 1742440), (1270, 1496852), (1372, 1385570), (1715, 1108456), (1778, 1069180), (1960, 969899), (2182, 871220), (2540, 748426), (2744, 692785), (3430, 554228), (3556, 534590), (4364, 435610), (4445, 427672), (5080, 374213), (5455, 348488), (6223, 305480), (6860, 277114), (7112, 267295), (7637, 248920), (8728, 217805), (8890, 213836), (10910, 174244), (12446, 152740), (13720, 138557), (15274, 124460), (17780, 106918), (21820, 87122), (24892, 76370), (30548, 62230), (31115, 61096), (35560, 53459), (38185, 49784), (43561, 43640)]