28068464788

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{20903}}^1$

素因数の和:20982

約数の個数: 144

約数和(自身を含む): 67259372544

約数和(自身を除く): 39190907756

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 31, 34, 49, 52, 62, 68, 91, 98, 119, 124, 182, 196, 217, 221, 238, 364, 403, 434, 442, 476, 527, 637, 806, 833, 868, 884, 1054, 1274, 1519, 1547, 1612, 1666, 2108, 2548, 2821, 3038, 3094, 3332, 3689, 5642, 6076, 6188, 6851, 7378, 10829, 11284, 13702, 14756, 19747, 20903, 21658, 25823, 27404, 39494, 41806, 43316, 47957, 51646, 78988, 83612, 95914, 103292, 146321, 191828, 271739, 292642, 335699, 355351, 543478, 585284, 647993, 671398, 710702, 1024247, 1086956, 1295986, 1342796, 1421404, 1902173, 2048494, 2487457, 2591972, 3804346, 4096988, 4535951, 4619563, 4974914, 7608692, 8423909, 9071902, 9239126, 9949828, 11015881, 13315211, 16847818, 17412199, 18143804, 18478252, 22031762, 26630422, 31751657, 32336941, 33695636, 34824398, 44063524, 53260844, 58967363, 63503314, 64673882, 69648796, 77111167, 117934726, 127006628, 129347764, 143206453, 154222334, 226358587, 235869452, 286412906, 308444668, 412771541, 452717174, 539778169, 572825812, 825543082, 905434348, 1002445171, 1079556338, 1651086164, 2004890342, 2159112676, 4009780684, 7017116197, 14034232394, 28068464788]

約数ペア:

[(1, 28068464788), (2, 14034232394), (4, 7017116197), (7, 4009780684), (13, 2159112676), (14, 2004890342), (17, 1651086164), (26, 1079556338), (28, 1002445171), (31, 905434348), (34, 825543082), (49, 572825812), (52, 539778169), (62, 452717174), (68, 412771541), (91, 308444668), (98, 286412906), (119, 235869452), (124, 226358587), (182, 154222334), (196, 143206453), (217, 129347764), (221, 127006628), (238, 117934726), (364, 77111167), (403, 69648796), (434, 64673882), (442, 63503314), (476, 58967363), (527, 53260844), (637, 44063524), (806, 34824398), (833, 33695636), (868, 32336941), (884, 31751657), (1054, 26630422), (1274, 22031762), (1519, 18478252), (1547, 18143804), (1612, 17412199), (1666, 16847818), (2108, 13315211), (2548, 11015881), (2821, 9949828), (3038, 9239126), (3094, 9071902), (3332, 8423909), (3689, 7608692), (5642, 4974914), (6076, 4619563), (6188, 4535951), (6851, 4096988), (7378, 3804346), (10829, 2591972), (11284, 2487457), (13702, 2048494), (14756, 1902173), (19747, 1421404), (20903, 1342796), (21658, 1295986), (25823, 1086956), (27404, 1024247), (39494, 710702), (41806, 671398), (43316, 647993), (47957, 585284), (51646, 543478), (78988, 355351), (83612, 335699), (95914, 292642), (103292, 271739), (146321, 191828)]