198765540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1171}}^1$

素因数の和:1250

約数の個数: 144

約数和(自身を含む): 645031296

約数和(自身を除く): 446265756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 41, 45, 46, 60, 69, 82, 90, 92, 115, 123, 138, 164, 180, 205, 207, 230, 246, 276, 345, 369, 410, 414, 460, 492, 615, 690, 738, 820, 828, 943, 1035, 1171, 1230, 1380, 1476, 1845, 1886, 2070, 2342, 2460, 2829, 3513, 3690, 3772, 4140, 4684, 4715, 5658, 5855, 7026, 7380, 8487, 9430, 10539, 11316, 11710, 14052, 14145, 16974, 17565, 18860, 21078, 23420, 26933, 28290, 33948, 35130, 42156, 42435, 48011, 52695, 53866, 56580, 70260, 80799, 84870, 96022, 105390, 107732, 134665, 144033, 161598, 169740, 192044, 210780, 240055, 242397, 269330, 288066, 323196, 403995, 432099, 480110, 484794, 538660, 576132, 720165, 807990, 864198, 960220, 969588, 1104253, 1211985, 1440330, 1615980, 1728396, 2160495, 2208506, 2423970, 2880660, 3312759, 4320990, 4417012, 4847940, 5521265, 6625518, 8641980, 9938277, 11042530, 13251036, 16563795, 19876554, 22085060, 33127590, 39753108, 49691385, 66255180, 99382770, 198765540]

約数ペア:

[(1, 198765540), (2, 99382770), (3, 66255180), (4, 49691385), (5, 39753108), (6, 33127590), (9, 22085060), (10, 19876554), (12, 16563795), (15, 13251036), (18, 11042530), (20, 9938277), (23, 8641980), (30, 6625518), (36, 5521265), (41, 4847940), (45, 4417012), (46, 4320990), (60, 3312759), (69, 2880660), (82, 2423970), (90, 2208506), (92, 2160495), (115, 1728396), (123, 1615980), (138, 1440330), (164, 1211985), (180, 1104253), (205, 969588), (207, 960220), (230, 864198), (246, 807990), (276, 720165), (345, 576132), (369, 538660), (410, 484794), (414, 480110), (460, 432099), (492, 403995), (615, 323196), (690, 288066), (738, 269330), (820, 242397), (828, 240055), (943, 210780), (1035, 192044), (1171, 169740), (1230, 161598), (1380, 144033), (1476, 134665), (1845, 107732), (1886, 105390), (2070, 96022), (2342, 84870), (2460, 80799), (2829, 70260), (3513, 56580), (3690, 53866), (3772, 52695), (4140, 48011), (4684, 42435), (4715, 42156), (5658, 35130), (5855, 33948), (7026, 28290), (7380, 26933), (8487, 23420), (9430, 21078), (10539, 18860), (11316, 17565), (11710, 16974), (14052, 14145)]