271573640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1063

約数の個数: 128

約数和(自身を含む): 719953920

約数和(自身を除く): 448380280

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 31, 34, 40, 52, 62, 65, 68, 85, 104, 124, 130, 136, 155, 170, 221, 248, 260, 310, 340, 403, 442, 520, 527, 620, 680, 806, 884, 991, 1054, 1105, 1240, 1612, 1768, 1982, 2015, 2108, 2210, 2635, 3224, 3964, 4030, 4216, 4420, 4955, 5270, 6851, 7928, 8060, 8840, 9910, 10540, 12883, 13702, 16120, 16847, 19820, 21080, 25766, 27404, 30721, 33694, 34255, 39640, 51532, 54808, 61442, 64415, 67388, 68510, 84235, 103064, 122884, 128830, 134776, 137020, 153605, 168470, 219011, 245768, 257660, 274040, 307210, 336940, 399373, 438022, 515320, 522257, 614420, 673880, 798746, 876044, 1044514, 1095055, 1228840, 1597492, 1752088, 1996865, 2089028, 2190110, 2611285, 3194984, 3993730, 4178056, 4380220, 5222570, 6789341, 7987460, 8760440, 10445140, 13578682, 15974920, 20890280, 27157364, 33946705, 54314728, 67893410, 135786820, 271573640]

約数ペア:

[(1, 271573640), (2, 135786820), (4, 67893410), (5, 54314728), (8, 33946705), (10, 27157364), (13, 20890280), (17, 15974920), (20, 13578682), (26, 10445140), (31, 8760440), (34, 7987460), (40, 6789341), (52, 5222570), (62, 4380220), (65, 4178056), (68, 3993730), (85, 3194984), (104, 2611285), (124, 2190110), (130, 2089028), (136, 1996865), (155, 1752088), (170, 1597492), (221, 1228840), (248, 1095055), (260, 1044514), (310, 876044), (340, 798746), (403, 673880), (442, 614420), (520, 522257), (527, 515320), (620, 438022), (680, 399373), (806, 336940), (884, 307210), (991, 274040), (1054, 257660), (1105, 245768), (1240, 219011), (1612, 168470), (1768, 153605), (1982, 137020), (2015, 134776), (2108, 128830), (2210, 122884), (2635, 103064), (3224, 84235), (3964, 68510), (4030, 67388), (4216, 64415), (4420, 61442), (4955, 54808), (5270, 51532), (6851, 39640), (7928, 34255), (8060, 33694), (8840, 30721), (9910, 27404), (10540, 25766), (12883, 21080), (13702, 19820), (16120, 16847)]