51385880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{743}}^1$

素因数の和:793

約数の個数: 128

約数和(自身を含む): 149990400

約数和(自身を除く): 98604520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 91, 95, 104, 130, 133, 140, 152, 182, 190, 247, 260, 266, 280, 364, 380, 455, 494, 520, 532, 665, 728, 743, 760, 910, 988, 1064, 1235, 1330, 1486, 1729, 1820, 1976, 2470, 2660, 2972, 3458, 3640, 3715, 4940, 5201, 5320, 5944, 6916, 7430, 8645, 9659, 9880, 10402, 13832, 14117, 14860, 17290, 19318, 20804, 26005, 28234, 29720, 34580, 38636, 41608, 48295, 52010, 56468, 67613, 69160, 70585, 77272, 96590, 98819, 104020, 112936, 135226, 141170, 183521, 193180, 197638, 208040, 270452, 282340, 338065, 367042, 386360, 395276, 494095, 540904, 564680, 676130, 734084, 790552, 917605, 988190, 1284647, 1352260, 1468168, 1835210, 1976380, 2569294, 2704520, 3670420, 3952760, 5138588, 6423235, 7340840, 10277176, 12846470, 25692940, 51385880]

約数ペア:

[(1, 51385880), (2, 25692940), (4, 12846470), (5, 10277176), (7, 7340840), (8, 6423235), (10, 5138588), (13, 3952760), (14, 3670420), (19, 2704520), (20, 2569294), (26, 1976380), (28, 1835210), (35, 1468168), (38, 1352260), (40, 1284647), (52, 988190), (56, 917605), (65, 790552), (70, 734084), (76, 676130), (91, 564680), (95, 540904), (104, 494095), (130, 395276), (133, 386360), (140, 367042), (152, 338065), (182, 282340), (190, 270452), (247, 208040), (260, 197638), (266, 193180), (280, 183521), (364, 141170), (380, 135226), (455, 112936), (494, 104020), (520, 98819), (532, 96590), (665, 77272), (728, 70585), (743, 69160), (760, 67613), (910, 56468), (988, 52010), (1064, 48295), (1235, 41608), (1330, 38636), (1486, 34580), (1729, 29720), (1820, 28234), (1976, 26005), (2470, 20804), (2660, 19318), (2972, 17290), (3458, 14860), (3640, 14117), (3715, 13832), (4940, 10402), (5201, 9880), (5320, 9659), (5944, 8645), (6916, 7430)]