18040620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 55177920

約数和(自身を除く): 37137300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 101, 130, 156, 195, 202, 229, 260, 303, 390, 404, 458, 505, 606, 687, 780, 916, 1010, 1145, 1212, 1313, 1374, 1515, 2020, 2290, 2626, 2748, 2977, 3030, 3435, 3939, 4580, 5252, 5954, 6060, 6565, 6870, 7878, 8931, 11908, 13130, 13740, 14885, 15756, 17862, 19695, 23129, 26260, 29770, 35724, 39390, 44655, 46258, 59540, 69387, 78780, 89310, 92516, 115645, 138774, 178620, 231290, 277548, 300677, 346935, 462580, 601354, 693870, 902031, 1202708, 1387740, 1503385, 1804062, 3006770, 3608124, 4510155, 6013540, 9020310, 18040620]

約数ペア:

[(1, 18040620), (2, 9020310), (3, 6013540), (4, 4510155), (5, 3608124), (6, 3006770), (10, 1804062), (12, 1503385), (13, 1387740), (15, 1202708), (20, 902031), (26, 693870), (30, 601354), (39, 462580), (52, 346935), (60, 300677), (65, 277548), (78, 231290), (101, 178620), (130, 138774), (156, 115645), (195, 92516), (202, 89310), (229, 78780), (260, 69387), (303, 59540), (390, 46258), (404, 44655), (458, 39390), (505, 35724), (606, 29770), (687, 26260), (780, 23129), (916, 19695), (1010, 17862), (1145, 15756), (1212, 14885), (1313, 13740), (1374, 13130), (1515, 11908), (2020, 8931), (2290, 7878), (2626, 6870), (2748, 6565), (2977, 6060), (3030, 5954), (3435, 5252), (3939, 4580)]