81967140

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2663}}^1$

素因数の和:2703

約数の個数: 120

約数和(自身を含む): 270768960

約数和(自身を除く): 188801820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 684, 810, 855, 1026, 1140, 1539, 1620, 1710, 2052, 2565, 2663, 3078, 3420, 5130, 5326, 6156, 7695, 7989, 10260, 10652, 13315, 15390, 15978, 23967, 26630, 30780, 31956, 39945, 47934, 50597, 53260, 71901, 79890, 95868, 101194, 119835, 143802, 151791, 159780, 202388, 215703, 239670, 252985, 287604, 303582, 359505, 431406, 455373, 479340, 505970, 607164, 719010, 758955, 862812, 910746, 1011940, 1078515, 1366119, 1438020, 1517910, 1821492, 2157030, 2276865, 2732238, 3035820, 4098357, 4314060, 4553730, 5464476, 6830595, 8196714, 9107460, 13661190, 16393428, 20491785, 27322380, 40983570, 81967140]

約数ペア:

[(1, 81967140), (2, 40983570), (3, 27322380), (4, 20491785), (5, 16393428), (6, 13661190), (9, 9107460), (10, 8196714), (12, 6830595), (15, 5464476), (18, 4553730), (19, 4314060), (20, 4098357), (27, 3035820), (30, 2732238), (36, 2276865), (38, 2157030), (45, 1821492), (54, 1517910), (57, 1438020), (60, 1366119), (76, 1078515), (81, 1011940), (90, 910746), (95, 862812), (108, 758955), (114, 719010), (135, 607164), (162, 505970), (171, 479340), (180, 455373), (190, 431406), (228, 359505), (270, 303582), (285, 287604), (324, 252985), (342, 239670), (380, 215703), (405, 202388), (513, 159780), (540, 151791), (570, 143802), (684, 119835), (810, 101194), (855, 95868), (1026, 79890), (1140, 71901), (1539, 53260), (1620, 50597), (1710, 47934), (2052, 39945), (2565, 31956), (2663, 30780), (3078, 26630), (3420, 23967), (5130, 15978), (5326, 15390), (6156, 13315), (7695, 10652), (7989, 10260)]