281755280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:265

約数の個数: 160

約数和(自身を含む): 737952768

約数和(自身を除く): 456197488

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 41, 62, 68, 80, 82, 85, 124, 136, 155, 163, 164, 170, 205, 248, 272, 310, 326, 328, 340, 410, 496, 527, 620, 652, 656, 680, 697, 815, 820, 1054, 1240, 1271, 1304, 1360, 1394, 1630, 1640, 2108, 2480, 2542, 2608, 2635, 2771, 2788, 3260, 3280, 3485, 4216, 5053, 5084, 5270, 5542, 5576, 6355, 6520, 6683, 6970, 8432, 10106, 10168, 10540, 11084, 11152, 12710, 13040, 13366, 13855, 13940, 20212, 20336, 21080, 21607, 22168, 25265, 25420, 26732, 27710, 27880, 33415, 40424, 42160, 43214, 44336, 50530, 50840, 53464, 55420, 55760, 66830, 80848, 85901, 86428, 101060, 101680, 106928, 108035, 110840, 113611, 133660, 171802, 172856, 202120, 207173, 216070, 221680, 227222, 267320, 343604, 345712, 404240, 414346, 429505, 432140, 454444, 534640, 568055, 687208, 828692, 859010, 864280, 908888, 1035865, 1136110, 1374416, 1657384, 1718020, 1728560, 1817776, 2071730, 2272220, 3314768, 3436040, 3521941, 4143460, 4544440, 6872080, 7043882, 8286920, 9088880, 14087764, 16573840, 17609705, 28175528, 35219410, 56351056, 70438820, 140877640, 281755280]

約数ペア:

[(1, 281755280), (2, 140877640), (4, 70438820), (5, 56351056), (8, 35219410), (10, 28175528), (16, 17609705), (17, 16573840), (20, 14087764), (31, 9088880), (34, 8286920), (40, 7043882), (41, 6872080), (62, 4544440), (68, 4143460), (80, 3521941), (82, 3436040), (85, 3314768), (124, 2272220), (136, 2071730), (155, 1817776), (163, 1728560), (164, 1718020), (170, 1657384), (205, 1374416), (248, 1136110), (272, 1035865), (310, 908888), (326, 864280), (328, 859010), (340, 828692), (410, 687208), (496, 568055), (527, 534640), (620, 454444), (652, 432140), (656, 429505), (680, 414346), (697, 404240), (815, 345712), (820, 343604), (1054, 267320), (1240, 227222), (1271, 221680), (1304, 216070), (1360, 207173), (1394, 202120), (1630, 172856), (1640, 171802), (2108, 133660), (2480, 113611), (2542, 110840), (2608, 108035), (2635, 106928), (2771, 101680), (2788, 101060), (3260, 86428), (3280, 85901), (3485, 80848), (4216, 66830), (5053, 55760), (5084, 55420), (5270, 53464), (5542, 50840), (5576, 50530), (6355, 44336), (6520, 43214), (6683, 42160), (6970, 40424), (8432, 33415), (10106, 27880), (10168, 27710), (10540, 26732), (11084, 25420), (11152, 25265), (12710, 22168), (13040, 21607), (13366, 21080), (13855, 20336), (13940, 20212)]