780355870

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:279

約数の個数: 128

約数和(自身を含む): 1741824000

約数和(自身を除く): 961468130

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 41, 49, 62, 70, 82, 98, 155, 179, 205, 217, 245, 287, 310, 343, 358, 410, 434, 490, 574, 686, 895, 1085, 1253, 1271, 1435, 1519, 1715, 1790, 2009, 2170, 2506, 2542, 2870, 3038, 3430, 4018, 5549, 6265, 6355, 7339, 7595, 8771, 8897, 10045, 10633, 11098, 12530, 12710, 14063, 14678, 15190, 17542, 17794, 20090, 21266, 27745, 28126, 36695, 38843, 43855, 44485, 51373, 53165, 55490, 61397, 62279, 70315, 73390, 77686, 87710, 88970, 102746, 106330, 122794, 124558, 140630, 194215, 227509, 256865, 271901, 306985, 311395, 359611, 388430, 435953, 455018, 513730, 543802, 613970, 622790, 719222, 871906, 1137545, 1359505, 1592563, 1798055, 1903307, 2179765, 2275090, 2517277, 2719010, 3185126, 3596110, 3806614, 4359530, 5034554, 7962815, 9516535, 11147941, 12586385, 15925630, 19033070, 22295882, 25172770, 55739705, 78035587, 111479410, 156071174, 390177935, 780355870]

約数ペア:

[(1, 780355870), (2, 390177935), (5, 156071174), (7, 111479410), (10, 78035587), (14, 55739705), (31, 25172770), (35, 22295882), (41, 19033070), (49, 15925630), (62, 12586385), (70, 11147941), (82, 9516535), (98, 7962815), (155, 5034554), (179, 4359530), (205, 3806614), (217, 3596110), (245, 3185126), (287, 2719010), (310, 2517277), (343, 2275090), (358, 2179765), (410, 1903307), (434, 1798055), (490, 1592563), (574, 1359505), (686, 1137545), (895, 871906), (1085, 719222), (1253, 622790), (1271, 613970), (1435, 543802), (1519, 513730), (1715, 455018), (1790, 435953), (2009, 388430), (2170, 359611), (2506, 311395), (2542, 306985), (2870, 271901), (3038, 256865), (3430, 227509), (4018, 194215), (5549, 140630), (6265, 124558), (6355, 122794), (7339, 106330), (7595, 102746), (8771, 88970), (8897, 87710), (10045, 77686), (10633, 73390), (11098, 70315), (12530, 62279), (12710, 61397), (14063, 55490), (14678, 53165), (15190, 51373), (17542, 44485), (17794, 43855), (20090, 38843), (21266, 36695), (27745, 28126)]