28037880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2030

約数の個数: 128

約数和(自身を含む): 100699200

約数和(自身を除く): 72661320

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, 1560, 1755, 1997, 2340, 2808, 3510, 3994, 4680, 5991, 7020, 7988, 9985, 11982, 14040, 15976, 17973, 19970, 23964, 25961, 29955, 35946, 39940, 47928, 51922, 53919, 59910, 71892, 77883, 79880, 89865, 103844, 107838, 119820, 129805, 143784, 155766, 179730, 207688, 215676, 233649, 239640, 259610, 269595, 311532, 359460, 389415, 431352, 467298, 519220, 539190, 623064, 700947, 718920, 778830, 934596, 1038440, 1078380, 1168245, 1401894, 1557660, 1869192, 2156760, 2336490, 2803788, 3115320, 3504735, 4672980, 5607576, 7009470, 9345960, 14018940, 28037880]

約数ペア:

[(1, 28037880), (2, 14018940), (3, 9345960), (4, 7009470), (5, 5607576), (6, 4672980), (8, 3504735), (9, 3115320), (10, 2803788), (12, 2336490), (13, 2156760), (15, 1869192), (18, 1557660), (20, 1401894), (24, 1168245), (26, 1078380), (27, 1038440), (30, 934596), (36, 778830), (39, 718920), (40, 700947), (45, 623064), (52, 539190), (54, 519220), (60, 467298), (65, 431352), (72, 389415), (78, 359460), (90, 311532), (104, 269595), (108, 259610), (117, 239640), (120, 233649), (130, 215676), (135, 207688), (156, 179730), (180, 155766), (195, 143784), (216, 129805), (234, 119820), (260, 107838), (270, 103844), (312, 89865), (351, 79880), (360, 77883), (390, 71892), (468, 59910), (520, 53919), (540, 51922), (585, 47928), (702, 39940), (780, 35946), (936, 29955), (1080, 25961), (1170, 23964), (1404, 19970), (1560, 17973), (1755, 15976), (1997, 14040), (2340, 11982), (2808, 9985), (3510, 7988), (3994, 7020), (4680, 5991)]