20191915240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{499}}^1\times {\mathrm{8501}}^1$

素因数の和:9035

約数の個数: 128

約数和(自身を含む): 55092960000

約数和(自身を除く): 34901044760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 499, 595, 680, 952, 998, 1190, 1996, 2380, 2495, 3493, 3992, 4760, 4990, 6986, 8483, 8501, 9980, 13972, 16966, 17002, 17465, 19960, 27944, 33932, 34004, 34930, 42415, 42505, 59381, 59507, 67864, 68008, 69860, 84830, 85010, 118762, 119014, 139720, 144517, 169660, 170020, 237524, 238028, 289034, 296905, 297535, 339320, 340040, 475048, 476056, 578068, 593810, 595070, 722585, 1011619, 1156136, 1187620, 1190140, 1445170, 2023238, 2375240, 2380280, 2890340, 4046476, 4241999, 5058095, 5780680, 8092952, 8483998, 10116190, 16967996, 20232380, 21209995, 29693993, 33935992, 40464760, 42419990, 59387986, 72113983, 84839980, 118775972, 144227966, 148469965, 169679960, 237551944, 288455932, 296939930, 360569915, 504797881, 576911864, 593879860, 721139830, 1009595762, 1187759720, 1442279660, 2019191524, 2523989405, 2884559320, 4038383048, 5047978810, 10095957620, 20191915240]

約数ペア:

[(1, 20191915240), (2, 10095957620), (4, 5047978810), (5, 4038383048), (7, 2884559320), (8, 2523989405), (10, 2019191524), (14, 1442279660), (17, 1187759720), (20, 1009595762), (28, 721139830), (34, 593879860), (35, 576911864), (40, 504797881), (56, 360569915), (68, 296939930), (70, 288455932), (85, 237551944), (119, 169679960), (136, 148469965), (140, 144227966), (170, 118775972), (238, 84839980), (280, 72113983), (340, 59387986), (476, 42419990), (499, 40464760), (595, 33935992), (680, 29693993), (952, 21209995), (998, 20232380), (1190, 16967996), (1996, 10116190), (2380, 8483998), (2495, 8092952), (3493, 5780680), (3992, 5058095), (4760, 4241999), (4990, 4046476), (6986, 2890340), (8483, 2380280), (8501, 2375240), (9980, 2023238), (13972, 1445170), (16966, 1190140), (17002, 1187620), (17465, 1156136), (19960, 1011619), (27944, 722585), (33932, 595070), (34004, 593810), (34930, 578068), (42415, 476056), (42505, 475048), (59381, 340040), (59507, 339320), (67864, 297535), (68008, 296905), (69860, 289034), (84830, 238028), (85010, 237524), (118762, 170020), (119014, 169660), (139720, 144517)]