18201540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 61133184

約数和(自身を除く): 42931644

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 49, 60, 70, 82, 84, 98, 105, 123, 140, 147, 151, 164, 196, 205, 210, 245, 246, 287, 294, 302, 410, 420, 453, 490, 492, 574, 588, 604, 615, 735, 755, 820, 861, 906, 980, 1057, 1148, 1230, 1435, 1470, 1510, 1722, 1812, 2009, 2114, 2265, 2460, 2870, 2940, 3020, 3171, 3444, 4018, 4228, 4305, 4530, 5285, 5740, 6027, 6191, 6342, 7399, 8036, 8610, 9060, 10045, 10570, 12054, 12382, 12684, 14798, 15855, 17220, 18573, 20090, 21140, 22197, 24108, 24764, 29596, 30135, 30955, 31710, 36995, 37146, 40180, 43337, 44394, 60270, 61910, 63420, 73990, 74292, 86674, 88788, 92865, 110985, 120540, 123820, 130011, 147980, 173348, 185730, 216685, 221970, 260022, 303359, 371460, 433370, 443940, 520044, 606718, 650055, 866740, 910077, 1213436, 1300110, 1516795, 1820154, 2600220, 3033590, 3640308, 4550385, 6067180, 9100770, 18201540]

約数ペア:

[(1, 18201540), (2, 9100770), (3, 6067180), (4, 4550385), (5, 3640308), (6, 3033590), (7, 2600220), (10, 1820154), (12, 1516795), (14, 1300110), (15, 1213436), (20, 910077), (21, 866740), (28, 650055), (30, 606718), (35, 520044), (41, 443940), (42, 433370), (49, 371460), (60, 303359), (70, 260022), (82, 221970), (84, 216685), (98, 185730), (105, 173348), (123, 147980), (140, 130011), (147, 123820), (151, 120540), (164, 110985), (196, 92865), (205, 88788), (210, 86674), (245, 74292), (246, 73990), (287, 63420), (294, 61910), (302, 60270), (410, 44394), (420, 43337), (453, 40180), (490, 37146), (492, 36995), (574, 31710), (588, 30955), (604, 30135), (615, 29596), (735, 24764), (755, 24108), (820, 22197), (861, 21140), (906, 20090), (980, 18573), (1057, 17220), (1148, 15855), (1230, 14798), (1435, 12684), (1470, 12382), (1510, 12054), (1722, 10570), (1812, 10045), (2009, 9060), (2114, 8610), (2265, 8036), (2460, 7399), (2870, 6342), (2940, 6191), (3020, 6027), (3171, 5740), (3444, 5285), (4018, 4530), (4228, 4305)]