128279280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1367}}^1$

素因数の和:1423

約数の個数: 160

約数和(自身を含む): 439686144

約数和(自身を除く): 311406864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 23, 24, 30, 34, 40, 46, 48, 51, 60, 68, 69, 80, 85, 92, 102, 115, 120, 136, 138, 170, 184, 204, 230, 240, 255, 272, 276, 340, 345, 368, 391, 408, 460, 510, 552, 680, 690, 782, 816, 920, 1020, 1104, 1173, 1360, 1367, 1380, 1564, 1840, 1955, 2040, 2346, 2734, 2760, 3128, 3910, 4080, 4101, 4692, 5468, 5520, 5865, 6256, 6835, 7820, 8202, 9384, 10936, 11730, 13670, 15640, 16404, 18768, 20505, 21872, 23239, 23460, 27340, 31280, 31441, 32808, 41010, 46478, 46920, 54680, 62882, 65616, 69717, 82020, 92956, 93840, 94323, 109360, 116195, 125764, 139434, 157205, 164040, 185912, 188646, 232390, 251528, 278868, 314410, 328080, 348585, 371824, 377292, 464780, 471615, 503056, 534497, 557736, 628820, 697170, 754584, 929560, 943230, 1068994, 1115472, 1257640, 1394340, 1509168, 1603491, 1859120, 1886460, 2137988, 2515280, 2672485, 2788680, 3206982, 3772920, 4275976, 5344970, 5577360, 6413964, 7545840, 8017455, 8551952, 10689940, 12827928, 16034910, 21379880, 25655856, 32069820, 42759760, 64139640, 128279280]

約数ペア:

[(1, 128279280), (2, 64139640), (3, 42759760), (4, 32069820), (5, 25655856), (6, 21379880), (8, 16034910), (10, 12827928), (12, 10689940), (15, 8551952), (16, 8017455), (17, 7545840), (20, 6413964), (23, 5577360), (24, 5344970), (30, 4275976), (34, 3772920), (40, 3206982), (46, 2788680), (48, 2672485), (51, 2515280), (60, 2137988), (68, 1886460), (69, 1859120), (80, 1603491), (85, 1509168), (92, 1394340), (102, 1257640), (115, 1115472), (120, 1068994), (136, 943230), (138, 929560), (170, 754584), (184, 697170), (204, 628820), (230, 557736), (240, 534497), (255, 503056), (272, 471615), (276, 464780), (340, 377292), (345, 371824), (368, 348585), (391, 328080), (408, 314410), (460, 278868), (510, 251528), (552, 232390), (680, 188646), (690, 185912), (782, 164040), (816, 157205), (920, 139434), (1020, 125764), (1104, 116195), (1173, 109360), (1360, 94323), (1367, 93840), (1380, 92956), (1564, 82020), (1840, 69717), (1955, 65616), (2040, 62882), (2346, 54680), (2734, 46920), (2760, 46478), (3128, 41010), (3910, 32808), (4080, 31441), (4101, 31280), (4692, 27340), (5468, 23460), (5520, 23239), (5865, 21872), (6256, 20505), (6835, 18768), (7820, 16404), (8202, 15640), (9384, 13670), (10936, 11730)]