31574620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 87907680

約数和(自身を除く): 56333060

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 49, 55, 58, 70, 77, 98, 101, 110, 116, 140, 145, 154, 196, 202, 203, 220, 245, 290, 308, 319, 385, 404, 406, 490, 505, 539, 580, 638, 707, 770, 812, 980, 1010, 1015, 1078, 1111, 1276, 1414, 1421, 1540, 1595, 2020, 2030, 2156, 2222, 2233, 2695, 2828, 2842, 2929, 3190, 3535, 4060, 4444, 4466, 4949, 5390, 5555, 5684, 5858, 6380, 7070, 7105, 7777, 8932, 9898, 10780, 11110, 11165, 11716, 14140, 14210, 14645, 15554, 15631, 19796, 20503, 22220, 22330, 24745, 28420, 29290, 31108, 31262, 32219, 38885, 41006, 44660, 49490, 54439, 58580, 62524, 64438, 77770, 78155, 82012, 98980, 102515, 108878, 128876, 143521, 155540, 156310, 161095, 205030, 217756, 225533, 272195, 287042, 312620, 322190, 410060, 451066, 544390, 574084, 644380, 717605, 902132, 1088780, 1127665, 1435210, 1578731, 2255330, 2870420, 3157462, 4510660, 6314924, 7893655, 15787310, 31574620]

約数ペア:

[(1, 31574620), (2, 15787310), (4, 7893655), (5, 6314924), (7, 4510660), (10, 3157462), (11, 2870420), (14, 2255330), (20, 1578731), (22, 1435210), (28, 1127665), (29, 1088780), (35, 902132), (44, 717605), (49, 644380), (55, 574084), (58, 544390), (70, 451066), (77, 410060), (98, 322190), (101, 312620), (110, 287042), (116, 272195), (140, 225533), (145, 217756), (154, 205030), (196, 161095), (202, 156310), (203, 155540), (220, 143521), (245, 128876), (290, 108878), (308, 102515), (319, 98980), (385, 82012), (404, 78155), (406, 77770), (490, 64438), (505, 62524), (539, 58580), (580, 54439), (638, 49490), (707, 44660), (770, 41006), (812, 38885), (980, 32219), (1010, 31262), (1015, 31108), (1078, 29290), (1111, 28420), (1276, 24745), (1414, 22330), (1421, 22220), (1540, 20503), (1595, 19796), (2020, 15631), (2030, 15554), (2156, 14645), (2222, 14210), (2233, 14140), (2695, 11716), (2828, 11165), (2842, 11110), (2929, 10780), (3190, 9898), (3535, 8932), (4060, 7777), (4444, 7105), (4466, 7070), (4949, 6380), (5390, 5858), (5555, 5684)]