12391940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:153

約数の個数: 96

約数和(自身を含む): 30965760

約数和(自身を除く): 18573820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 31, 44, 46, 55, 62, 79, 92, 110, 115, 124, 155, 158, 220, 230, 253, 310, 316, 341, 395, 460, 506, 620, 682, 713, 790, 869, 1012, 1265, 1364, 1426, 1580, 1705, 1738, 1817, 2449, 2530, 2852, 3410, 3476, 3565, 3634, 4345, 4898, 5060, 6820, 7130, 7268, 7843, 8690, 9085, 9796, 12245, 14260, 15686, 17380, 18170, 19987, 24490, 26939, 31372, 36340, 39215, 39974, 48980, 53878, 56327, 78430, 79948, 99935, 107756, 112654, 134695, 156860, 199870, 225308, 269390, 281635, 399740, 538780, 563270, 619597, 1126540, 1239194, 2478388, 3097985, 6195970, 12391940]

約数ペア:

[(1, 12391940), (2, 6195970), (4, 3097985), (5, 2478388), (10, 1239194), (11, 1126540), (20, 619597), (22, 563270), (23, 538780), (31, 399740), (44, 281635), (46, 269390), (55, 225308), (62, 199870), (79, 156860), (92, 134695), (110, 112654), (115, 107756), (124, 99935), (155, 79948), (158, 78430), (220, 56327), (230, 53878), (253, 48980), (310, 39974), (316, 39215), (341, 36340), (395, 31372), (460, 26939), (506, 24490), (620, 19987), (682, 18170), (713, 17380), (790, 15686), (869, 14260), (1012, 12245), (1265, 9796), (1364, 9085), (1426, 8690), (1580, 7843), (1705, 7268), (1738, 7130), (1817, 6820), (2449, 5060), (2530, 4898), (2852, 4345), (3410, 3634), (3476, 3565)]