20400120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1453}}^1$

素因数の和:1486

約数の個数: 128

約数和(自身を含む): 73281600

約数和(自身を除く): 52881480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1453, 1560, 1755, 2340, 2808, 2906, 3510, 4359, 4680, 5812, 7020, 7265, 8718, 11624, 13077, 14040, 14530, 17436, 18889, 21795, 26154, 29060, 34872, 37778, 39231, 43590, 52308, 56667, 58120, 65385, 75556, 78462, 87180, 94445, 104616, 113334, 130770, 151112, 156924, 170001, 174360, 188890, 196155, 226668, 261540, 283335, 313848, 340002, 377780, 392310, 453336, 510003, 523080, 566670, 680004, 755560, 784620, 850005, 1020006, 1133340, 1360008, 1569240, 1700010, 2040012, 2266680, 2550015, 3400020, 4080024, 5100030, 6800040, 10200060, 20400120]

約数ペア:

[(1, 20400120), (2, 10200060), (3, 6800040), (4, 5100030), (5, 4080024), (6, 3400020), (8, 2550015), (9, 2266680), (10, 2040012), (12, 1700010), (13, 1569240), (15, 1360008), (18, 1133340), (20, 1020006), (24, 850005), (26, 784620), (27, 755560), (30, 680004), (36, 566670), (39, 523080), (40, 510003), (45, 453336), (52, 392310), (54, 377780), (60, 340002), (65, 313848), (72, 283335), (78, 261540), (90, 226668), (104, 196155), (108, 188890), (117, 174360), (120, 170001), (130, 156924), (135, 151112), (156, 130770), (180, 113334), (195, 104616), (216, 94445), (234, 87180), (260, 78462), (270, 75556), (312, 65385), (351, 58120), (360, 56667), (390, 52308), (468, 43590), (520, 39231), (540, 37778), (585, 34872), (702, 29060), (780, 26154), (936, 21795), (1080, 18889), (1170, 17436), (1404, 14530), (1453, 14040), (1560, 13077), (1755, 11624), (2340, 8718), (2808, 7265), (2906, 7020), (3510, 5812), (4359, 4680)]