18900180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 63567504

約数和(自身を除く): 44667324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 41, 45, 52, 60, 65, 78, 82, 90, 117, 123, 130, 156, 164, 180, 195, 197, 205, 234, 246, 260, 369, 390, 394, 410, 468, 492, 533, 585, 591, 615, 738, 780, 788, 820, 985, 1066, 1170, 1182, 1230, 1476, 1599, 1773, 1845, 1970, 2132, 2340, 2364, 2460, 2561, 2665, 2955, 3198, 3546, 3690, 3940, 4797, 5122, 5330, 5910, 6396, 7092, 7380, 7683, 7995, 8077, 8865, 9594, 10244, 10660, 11820, 12805, 15366, 15990, 16154, 17730, 19188, 23049, 23985, 24231, 25610, 30732, 31980, 32308, 35460, 38415, 40385, 46098, 47970, 48462, 51220, 72693, 76830, 80770, 92196, 95940, 96924, 105001, 115245, 121155, 145386, 153660, 161540, 210002, 230490, 242310, 290772, 315003, 363465, 420004, 460980, 484620, 525005, 630006, 726930, 945009, 1050010, 1260012, 1453860, 1575015, 1890018, 2100020, 3150030, 3780036, 4725045, 6300060, 9450090, 18900180]

約数ペア:

[(1, 18900180), (2, 9450090), (3, 6300060), (4, 4725045), (5, 3780036), (6, 3150030), (9, 2100020), (10, 1890018), (12, 1575015), (13, 1453860), (15, 1260012), (18, 1050010), (20, 945009), (26, 726930), (30, 630006), (36, 525005), (39, 484620), (41, 460980), (45, 420004), (52, 363465), (60, 315003), (65, 290772), (78, 242310), (82, 230490), (90, 210002), (117, 161540), (123, 153660), (130, 145386), (156, 121155), (164, 115245), (180, 105001), (195, 96924), (197, 95940), (205, 92196), (234, 80770), (246, 76830), (260, 72693), (369, 51220), (390, 48462), (394, 47970), (410, 46098), (468, 40385), (492, 38415), (533, 35460), (585, 32308), (591, 31980), (615, 30732), (738, 25610), (780, 24231), (788, 23985), (820, 23049), (985, 19188), (1066, 17730), (1170, 16154), (1182, 15990), (1230, 15366), (1476, 12805), (1599, 11820), (1773, 10660), (1845, 10244), (1970, 9594), (2132, 8865), (2340, 8077), (2364, 7995), (2460, 7683), (2561, 7380), (2665, 7092), (2955, 6396), (3198, 5910), (3546, 5330), (3690, 5122), (3940, 4797)]