789654320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3499}}^1$

素因数の和:3563

約数の個数: 160

約数和(自身を含む): 2333184000

約数和(自身を除く): 1543529680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 80, 91, 104, 112, 124, 130, 140, 155, 182, 208, 217, 248, 260, 280, 310, 364, 403, 434, 455, 496, 520, 560, 620, 728, 806, 868, 910, 1040, 1085, 1240, 1456, 1612, 1736, 1820, 2015, 2170, 2480, 2821, 3224, 3472, 3499, 3640, 4030, 4340, 5642, 6448, 6998, 7280, 8060, 8680, 11284, 13996, 14105, 16120, 17360, 17495, 22568, 24493, 27992, 28210, 32240, 34990, 45136, 45487, 48986, 55984, 56420, 69980, 90974, 97972, 108469, 112840, 122465, 139960, 181948, 195944, 216938, 225680, 227435, 244930, 279920, 318409, 363896, 391888, 433876, 454870, 489860, 542345, 636818, 727792, 759283, 867752, 909740, 979720, 1084690, 1273636, 1410097, 1518566, 1592045, 1735504, 1819480, 1959440, 2169380, 2547272, 2820194, 3037132, 3184090, 3638960, 3796415, 4338760, 5094544, 5640388, 6074264, 6368180, 7050485, 7592830, 8677520, 9870679, 11280776, 12148528, 12736360, 14100970, 15185660, 19741358, 22561552, 25472720, 28201940, 30371320, 39482716, 49353395, 56403880, 60742640, 78965432, 98706790, 112807760, 157930864, 197413580, 394827160, 789654320]

約数ペア:

[(1, 789654320), (2, 394827160), (4, 197413580), (5, 157930864), (7, 112807760), (8, 98706790), (10, 78965432), (13, 60742640), (14, 56403880), (16, 49353395), (20, 39482716), (26, 30371320), (28, 28201940), (31, 25472720), (35, 22561552), (40, 19741358), (52, 15185660), (56, 14100970), (62, 12736360), (65, 12148528), (70, 11280776), (80, 9870679), (91, 8677520), (104, 7592830), (112, 7050485), (124, 6368180), (130, 6074264), (140, 5640388), (155, 5094544), (182, 4338760), (208, 3796415), (217, 3638960), (248, 3184090), (260, 3037132), (280, 2820194), (310, 2547272), (364, 2169380), (403, 1959440), (434, 1819480), (455, 1735504), (496, 1592045), (520, 1518566), (560, 1410097), (620, 1273636), (728, 1084690), (806, 979720), (868, 909740), (910, 867752), (1040, 759283), (1085, 727792), (1240, 636818), (1456, 542345), (1612, 489860), (1736, 454870), (1820, 433876), (2015, 391888), (2170, 363896), (2480, 318409), (2821, 279920), (3224, 244930), (3472, 227435), (3499, 225680), (3640, 216938), (4030, 195944), (4340, 181948), (5642, 139960), (6448, 122465), (6998, 112840), (7280, 108469), (8060, 97972), (8680, 90974), (11284, 69980), (13996, 56420), (14105, 55984), (16120, 48986), (17360, 45487), (17495, 45136), (22568, 34990), (24493, 32240), (27992, 28210)]