28471500

素因数分解:

$2^2\times 3^4\times 5^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:87

約数の個数: 240

約数和(自身を含む): 100420320

約数和(自身を除く): 71948820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 27, 30, 36, 37, 38, 45, 50, 54, 57, 60, 74, 75, 76, 81, 90, 95, 100, 108, 111, 114, 125, 135, 148, 150, 162, 171, 180, 185, 190, 222, 225, 228, 250, 270, 285, 300, 324, 333, 342, 370, 375, 380, 405, 444, 450, 475, 500, 513, 540, 555, 570, 666, 675, 684, 703, 740, 750, 810, 855, 900, 925, 950, 999, 1026, 1110, 1125, 1140, 1332, 1350, 1406, 1425, 1500, 1539, 1620, 1665, 1710, 1850, 1900, 1998, 2025, 2052, 2109, 2220, 2250, 2375, 2565, 2700, 2775, 2812, 2850, 2997, 3078, 3330, 3375, 3420, 3515, 3700, 3996, 4050, 4218, 4275, 4500, 4625, 4750, 4995, 5130, 5550, 5700, 5994, 6156, 6327, 6660, 6750, 7030, 7125, 7695, 8100, 8325, 8436, 8550, 9250, 9500, 9990, 10125, 10260, 10545, 11100, 11988, 12654, 12825, 13500, 13875, 14060, 14250, 14985, 15390, 16650, 17100, 17575, 18500, 18981, 19980, 20250, 21090, 21375, 24975, 25308, 25650, 27750, 28500, 29970, 30780, 31635, 33300, 35150, 37962, 38475, 40500, 41625, 42180, 42750, 49950, 51300, 52725, 55500, 56943, 59940, 63270, 64125, 70300, 74925, 75924, 76950, 83250, 85500, 87875, 94905, 99900, 105450, 113886, 124875, 126540, 128250, 149850, 153900, 158175, 166500, 175750, 189810, 192375, 210900, 227772, 249750, 256500, 263625, 284715, 299700, 316350, 351500, 374625, 379620, 384750, 474525, 499500, 527250, 569430, 632700, 749250, 769500, 790875, 949050, 1054500, 1138860, 1423575, 1498500, 1581750, 1898100, 2372625, 2847150, 3163500, 4745250, 5694300, 7117875, 9490500, 14235750, 28471500]

約数ペア:

[(1, 28471500), (2, 14235750), (3, 9490500), (4, 7117875), (5, 5694300), (6, 4745250), (9, 3163500), (10, 2847150), (12, 2372625), (15, 1898100), (18, 1581750), (19, 1498500), (20, 1423575), (25, 1138860), (27, 1054500), (30, 949050), (36, 790875), (37, 769500), (38, 749250), (45, 632700), (50, 569430), (54, 527250), (57, 499500), (60, 474525), (74, 384750), (75, 379620), (76, 374625), (81, 351500), (90, 316350), (95, 299700), (100, 284715), (108, 263625), (111, 256500), (114, 249750), (125, 227772), (135, 210900), (148, 192375), (150, 189810), (162, 175750), (171, 166500), (180, 158175), (185, 153900), (190, 149850), (222, 128250), (225, 126540), (228, 124875), (250, 113886), (270, 105450), (285, 99900), (300, 94905), (324, 87875), (333, 85500), (342, 83250), (370, 76950), (375, 75924), (380, 74925), (405, 70300), (444, 64125), (450, 63270), (475, 59940), (500, 56943), (513, 55500), (540, 52725), (555, 51300), (570, 49950), (666, 42750), (675, 42180), (684, 41625), (703, 40500), (740, 38475), (750, 37962), (810, 35150), (855, 33300), (900, 31635), (925, 30780), (950, 29970), (999, 28500), (1026, 27750), (1110, 25650), (1125, 25308), (1140, 24975), (1332, 21375), (1350, 21090), (1406, 20250), (1425, 19980), (1500, 18981), (1539, 18500), (1620, 17575), (1665, 17100), (1710, 16650), (1850, 15390), (1900, 14985), (1998, 14250), (2025, 14060), (2052, 13875), (2109, 13500), (2220, 12825), (2250, 12654), (2375, 11988), (2565, 11100), (2700, 10545), (2775, 10260), (2812, 10125), (2850, 9990), (2997, 9500), (3078, 9250), (3330, 8550), (3375, 8436), (3420, 8325), (3515, 8100), (3700, 7695), (3996, 7125), (4050, 7030), (4218, 6750), (4275, 6660), (4500, 6327), (4625, 6156), (4750, 5994), (4995, 5700), (5130, 5550)]