313178120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:283

約数の個数: 128

約数和(自身を含む): 774144000

約数和(自身を除く): 460965880

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 79, 92, 115, 124, 139, 155, 158, 184, 230, 248, 278, 310, 316, 395, 460, 556, 620, 632, 695, 713, 790, 920, 1112, 1240, 1390, 1426, 1580, 1817, 2449, 2780, 2852, 3160, 3197, 3565, 3634, 4309, 4898, 5560, 5704, 6394, 7130, 7268, 8618, 9085, 9796, 10981, 12245, 12788, 14260, 14536, 15985, 17236, 18170, 19592, 21545, 21962, 24490, 25576, 28520, 31970, 34472, 36340, 43090, 43924, 48980, 54905, 56327, 63940, 72680, 86180, 87848, 97960, 99107, 109810, 112654, 127880, 172360, 198214, 219620, 225308, 252563, 281635, 340411, 396428, 439240, 450616, 495535, 505126, 563270, 680822, 792856, 991070, 1010252, 1126540, 1262815, 1361644, 1702055, 1982140, 2020504, 2253080, 2525630, 2723288, 3404110, 3964280, 5051260, 6808220, 7829453, 10102520, 13616440, 15658906, 31317812, 39147265, 62635624, 78294530, 156589060, 313178120]

約数ペア:

[(1, 313178120), (2, 156589060), (4, 78294530), (5, 62635624), (8, 39147265), (10, 31317812), (20, 15658906), (23, 13616440), (31, 10102520), (40, 7829453), (46, 6808220), (62, 5051260), (79, 3964280), (92, 3404110), (115, 2723288), (124, 2525630), (139, 2253080), (155, 2020504), (158, 1982140), (184, 1702055), (230, 1361644), (248, 1262815), (278, 1126540), (310, 1010252), (316, 991070), (395, 792856), (460, 680822), (556, 563270), (620, 505126), (632, 495535), (695, 450616), (713, 439240), (790, 396428), (920, 340411), (1112, 281635), (1240, 252563), (1390, 225308), (1426, 219620), (1580, 198214), (1817, 172360), (2449, 127880), (2780, 112654), (2852, 109810), (3160, 99107), (3197, 97960), (3565, 87848), (3634, 86180), (4309, 72680), (4898, 63940), (5560, 56327), (5704, 54905), (6394, 48980), (7130, 43924), (7268, 43090), (8618, 36340), (9085, 34472), (9796, 31970), (10981, 28520), (12245, 25576), (12788, 24490), (14260, 21962), (14536, 21545), (15985, 19592), (17236, 18170)]