178223640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{641}}^1$

素因数の和:993

約数の個数: 128

約数和(自身を含む): 613854720

約数和(自身を除く): 435631080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 331, 420, 641, 662, 840, 993, 1282, 1324, 1655, 1923, 1986, 2317, 2564, 2648, 3205, 3310, 3846, 3972, 4487, 4634, 4965, 5128, 6410, 6620, 6951, 7692, 7944, 8974, 9268, 9615, 9930, 11585, 12820, 13240, 13461, 13902, 15384, 17948, 18536, 19230, 19860, 22435, 23170, 25640, 26922, 27804, 34755, 35896, 38460, 39720, 44870, 46340, 53844, 55608, 67305, 69510, 76920, 89740, 92680, 107688, 134610, 139020, 179480, 212171, 269220, 278040, 424342, 538440, 636513, 848684, 1060855, 1273026, 1485197, 1697368, 2121710, 2546052, 2970394, 3182565, 4243420, 4455591, 5092104, 5940788, 6365130, 7425985, 8486840, 8911182, 11881576, 12730260, 14851970, 17822364, 22277955, 25460520, 29703940, 35644728, 44555910, 59407880, 89111820, 178223640]

約数ペア:

[(1, 178223640), (2, 89111820), (3, 59407880), (4, 44555910), (5, 35644728), (6, 29703940), (7, 25460520), (8, 22277955), (10, 17822364), (12, 14851970), (14, 12730260), (15, 11881576), (20, 8911182), (21, 8486840), (24, 7425985), (28, 6365130), (30, 5940788), (35, 5092104), (40, 4455591), (42, 4243420), (56, 3182565), (60, 2970394), (70, 2546052), (84, 2121710), (105, 1697368), (120, 1485197), (140, 1273026), (168, 1060855), (210, 848684), (280, 636513), (331, 538440), (420, 424342), (641, 278040), (662, 269220), (840, 212171), (993, 179480), (1282, 139020), (1324, 134610), (1655, 107688), (1923, 92680), (1986, 89740), (2317, 76920), (2564, 69510), (2648, 67305), (3205, 55608), (3310, 53844), (3846, 46340), (3972, 44870), (4487, 39720), (4634, 38460), (4965, 35896), (5128, 34755), (6410, 27804), (6620, 26922), (6951, 25640), (7692, 23170), (7944, 22435), (8974, 19860), (9268, 19230), (9615, 18536), (9930, 17948), (11585, 15384), (12820, 13902), (13240, 13461)]