291335720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{607}}^1$

素因数の和:715

約数の個数: 96

約数和(自身を含む): 720990720

約数和(自身を除く): 429655000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 169, 260, 284, 338, 355, 520, 568, 607, 676, 710, 845, 923, 1214, 1352, 1420, 1690, 1846, 2428, 2840, 3035, 3380, 3692, 4615, 4856, 6070, 6760, 7384, 7891, 9230, 11999, 12140, 15782, 18460, 23998, 24280, 31564, 36920, 39455, 43097, 47996, 59995, 63128, 78910, 86194, 95992, 102583, 119990, 157820, 172388, 205166, 215485, 239980, 315640, 344776, 410332, 430970, 479960, 512915, 560261, 820664, 861940, 1025830, 1120522, 1723880, 2051660, 2241044, 2801305, 4103320, 4482088, 5602610, 7283393, 11205220, 14566786, 22410440, 29133572, 36416965, 58267144, 72833930, 145667860, 291335720]

約数ペア:

[(1, 291335720), (2, 145667860), (4, 72833930), (5, 58267144), (8, 36416965), (10, 29133572), (13, 22410440), (20, 14566786), (26, 11205220), (40, 7283393), (52, 5602610), (65, 4482088), (71, 4103320), (104, 2801305), (130, 2241044), (142, 2051660), (169, 1723880), (260, 1120522), (284, 1025830), (338, 861940), (355, 820664), (520, 560261), (568, 512915), (607, 479960), (676, 430970), (710, 410332), (845, 344776), (923, 315640), (1214, 239980), (1352, 215485), (1420, 205166), (1690, 172388), (1846, 157820), (2428, 119990), (2840, 102583), (3035, 95992), (3380, 86194), (3692, 78910), (4615, 63128), (4856, 59995), (6070, 47996), (6760, 43097), (7384, 39455), (7891, 36920), (9230, 31564), (11999, 24280), (12140, 23998), (15782, 18460)]