28479880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{383}}^1$

素因数の和:431

約数の個数: 96

約数和(自身を含む): 75893760

約数和(自身を除く): 47413880

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 169, 220, 260, 286, 338, 383, 440, 520, 572, 676, 715, 766, 845, 1144, 1352, 1430, 1532, 1690, 1859, 1915, 2860, 3064, 3380, 3718, 3830, 4213, 4979, 5720, 6760, 7436, 7660, 8426, 9295, 9958, 14872, 15320, 16852, 18590, 19916, 21065, 24895, 33704, 37180, 39832, 42130, 49790, 54769, 64727, 74360, 84260, 99580, 109538, 129454, 168520, 199160, 219076, 258908, 273845, 323635, 438152, 517816, 547690, 647270, 711997, 1095380, 1294540, 1423994, 2190760, 2589080, 2847988, 3559985, 5695976, 7119970, 14239940, 28479880]

約数ペア:

[(1, 28479880), (2, 14239940), (4, 7119970), (5, 5695976), (8, 3559985), (10, 2847988), (11, 2589080), (13, 2190760), (20, 1423994), (22, 1294540), (26, 1095380), (40, 711997), (44, 647270), (52, 547690), (55, 517816), (65, 438152), (88, 323635), (104, 273845), (110, 258908), (130, 219076), (143, 199160), (169, 168520), (220, 129454), (260, 109538), (286, 99580), (338, 84260), (383, 74360), (440, 64727), (520, 54769), (572, 49790), (676, 42130), (715, 39832), (766, 37180), (845, 33704), (1144, 24895), (1352, 21065), (1430, 19916), (1532, 18590), (1690, 16852), (1859, 15320), (1915, 14872), (2860, 9958), (3064, 9295), (3380, 8426), (3718, 7660), (3830, 7436), (4213, 6760), (4979, 5720)]