404799920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:559

約数の個数: 160

約数和(自身を含む): 1152890496

約数和(自身を除く): 748090576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 101, 112, 119, 136, 140, 170, 202, 238, 272, 280, 340, 404, 421, 476, 505, 560, 595, 680, 707, 808, 842, 952, 1010, 1190, 1360, 1414, 1616, 1684, 1717, 1904, 2020, 2105, 2380, 2828, 2947, 3368, 3434, 3535, 4040, 4210, 4760, 5656, 5894, 6736, 6868, 7070, 7157, 8080, 8420, 8585, 9520, 11312, 11788, 12019, 13736, 14140, 14314, 14735, 16840, 17170, 23576, 24038, 27472, 28280, 28628, 29470, 33680, 34340, 35785, 42521, 47152, 48076, 50099, 56560, 57256, 58940, 60095, 68680, 71570, 85042, 96152, 100198, 114512, 117880, 120190, 137360, 143140, 170084, 192304, 200396, 212605, 235760, 240380, 250495, 286280, 297647, 340168, 400792, 425210, 480760, 500990, 572560, 595294, 680336, 722857, 801584, 850420, 961520, 1001980, 1190588, 1445714, 1488235, 1700840, 2003960, 2381176, 2891428, 2976470, 3401680, 3614285, 4007920, 4762352, 5059999, 5782856, 5952940, 7228570, 10119998, 11565712, 11905880, 14457140, 20239996, 23811760, 25299995, 28914280, 40479992, 50599990, 57828560, 80959984, 101199980, 202399960, 404799920]

約数ペア:

[(1, 404799920), (2, 202399960), (4, 101199980), (5, 80959984), (7, 57828560), (8, 50599990), (10, 40479992), (14, 28914280), (16, 25299995), (17, 23811760), (20, 20239996), (28, 14457140), (34, 11905880), (35, 11565712), (40, 10119998), (56, 7228570), (68, 5952940), (70, 5782856), (80, 5059999), (85, 4762352), (101, 4007920), (112, 3614285), (119, 3401680), (136, 2976470), (140, 2891428), (170, 2381176), (202, 2003960), (238, 1700840), (272, 1488235), (280, 1445714), (340, 1190588), (404, 1001980), (421, 961520), (476, 850420), (505, 801584), (560, 722857), (595, 680336), (680, 595294), (707, 572560), (808, 500990), (842, 480760), (952, 425210), (1010, 400792), (1190, 340168), (1360, 297647), (1414, 286280), (1616, 250495), (1684, 240380), (1717, 235760), (1904, 212605), (2020, 200396), (2105, 192304), (2380, 170084), (2828, 143140), (2947, 137360), (3368, 120190), (3434, 117880), (3535, 114512), (4040, 100198), (4210, 96152), (4760, 85042), (5656, 71570), (5894, 68680), (6736, 60095), (6868, 58940), (7070, 57256), (7157, 56560), (8080, 50099), (8420, 48076), (8585, 47152), (9520, 42521), (11312, 35785), (11788, 34340), (12019, 33680), (13736, 29470), (14140, 28628), (14314, 28280), (14735, 27472), (16840, 24038), (17170, 23576)]