210311140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:353

約数の個数: 96

約数和(自身を含む): 494413920

約数和(自身を除く): 284102780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 109, 130, 164, 181, 205, 218, 260, 362, 410, 436, 533, 545, 724, 820, 905, 1066, 1090, 1417, 1810, 2132, 2180, 2353, 2665, 2834, 3620, 4469, 4706, 5330, 5668, 7085, 7421, 8938, 9412, 10660, 11765, 14170, 14842, 17876, 19729, 22345, 23530, 28340, 29684, 37105, 39458, 44690, 47060, 58097, 74210, 78916, 89380, 96473, 98645, 116194, 148420, 192946, 197290, 232388, 256477, 290485, 385892, 394580, 482365, 512954, 580970, 808889, 964730, 1025908, 1161940, 1282385, 1617778, 1929460, 2564770, 3235556, 4044445, 5129540, 8088890, 10515557, 16177780, 21031114, 42062228, 52577785, 105155570, 210311140]

約数ペア:

[(1, 210311140), (2, 105155570), (4, 52577785), (5, 42062228), (10, 21031114), (13, 16177780), (20, 10515557), (26, 8088890), (41, 5129540), (52, 4044445), (65, 3235556), (82, 2564770), (109, 1929460), (130, 1617778), (164, 1282385), (181, 1161940), (205, 1025908), (218, 964730), (260, 808889), (362, 580970), (410, 512954), (436, 482365), (533, 394580), (545, 385892), (724, 290485), (820, 256477), (905, 232388), (1066, 197290), (1090, 192946), (1417, 148420), (1810, 116194), (2132, 98645), (2180, 96473), (2353, 89380), (2665, 78916), (2834, 74210), (3620, 58097), (4469, 47060), (4706, 44690), (5330, 39458), (5668, 37105), (7085, 29684), (7421, 28340), (8938, 23530), (9412, 22345), (10660, 19729), (11765, 17876), (14170, 14842)]