18900540

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{3889}}^1$

素因数の和:3913

約数の個数: 72

約数和(自身を含む): 59470320

約数和(自身を除く): 40569780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 3889, 4860, 7778, 11667, 15556, 19445, 23334, 35001, 38890, 46668, 58335, 70002, 77780, 105003, 116670, 140004, 175005, 210006, 233340, 315009, 350010, 420012, 525015, 630018, 700020, 945027, 1050030, 1260036, 1575045, 1890054, 2100060, 3150090, 3780108, 4725135, 6300180, 9450270, 18900540]

約数ペア:

[(1, 18900540), (2, 9450270), (3, 6300180), (4, 4725135), (5, 3780108), (6, 3150090), (9, 2100060), (10, 1890054), (12, 1575045), (15, 1260036), (18, 1050030), (20, 945027), (27, 700020), (30, 630018), (36, 525015), (45, 420012), (54, 350010), (60, 315009), (81, 233340), (90, 210006), (108, 175005), (135, 140004), (162, 116670), (180, 105003), (243, 77780), (270, 70002), (324, 58335), (405, 46668), (486, 38890), (540, 35001), (810, 23334), (972, 19445), (1215, 15556), (1620, 11667), (2430, 7778), (3889, 4860)]