19745440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{863}}^1$

素因数の和:902

約数の個数: 96

約数和(自身を含む): 54867456

約数和(自身を除く): 35122016

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 352, 416, 440, 520, 572, 715, 863, 880, 1040, 1144, 1430, 1726, 1760, 2080, 2288, 2860, 3452, 4315, 4576, 5720, 6904, 8630, 9493, 11219, 11440, 13808, 17260, 18986, 22438, 22880, 27616, 34520, 37972, 44876, 47465, 56095, 69040, 75944, 89752, 94930, 112190, 123409, 138080, 151888, 179504, 189860, 224380, 246818, 303776, 359008, 379720, 448760, 493636, 617045, 759440, 897520, 987272, 1234090, 1518880, 1795040, 1974544, 2468180, 3949088, 4936360, 9872720, 19745440]

約数ペア:

[(1, 19745440), (2, 9872720), (4, 4936360), (5, 3949088), (8, 2468180), (10, 1974544), (11, 1795040), (13, 1518880), (16, 1234090), (20, 987272), (22, 897520), (26, 759440), (32, 617045), (40, 493636), (44, 448760), (52, 379720), (55, 359008), (65, 303776), (80, 246818), (88, 224380), (104, 189860), (110, 179504), (130, 151888), (143, 138080), (160, 123409), (176, 112190), (208, 94930), (220, 89752), (260, 75944), (286, 69040), (352, 56095), (416, 47465), (440, 44876), (520, 37972), (572, 34520), (715, 27616), (863, 22880), (880, 22438), (1040, 18986), (1144, 17260), (1430, 13808), (1726, 11440), (1760, 11219), (2080, 9493), (2288, 8630), (2860, 6904), (3452, 5720), (4315, 4576)]