28263560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 71348040

約数和(自身を除く): 43084480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 113, 130, 148, 169, 185, 226, 260, 296, 338, 370, 452, 481, 520, 565, 676, 740, 845, 904, 962, 1130, 1352, 1469, 1480, 1690, 1924, 2260, 2405, 2938, 3380, 3848, 4181, 4520, 4810, 5876, 6253, 6760, 7345, 8362, 9620, 11752, 12506, 14690, 16724, 19097, 19240, 20905, 25012, 29380, 31265, 33448, 38194, 41810, 50024, 54353, 58760, 62530, 76388, 83620, 95485, 108706, 125060, 152776, 167240, 190970, 217412, 250120, 271765, 381940, 434824, 543530, 706589, 763880, 1087060, 1413178, 2174120, 2826356, 3532945, 5652712, 7065890, 14131780, 28263560]

約数ペア:

[(1, 28263560), (2, 14131780), (4, 7065890), (5, 5652712), (8, 3532945), (10, 2826356), (13, 2174120), (20, 1413178), (26, 1087060), (37, 763880), (40, 706589), (52, 543530), (65, 434824), (74, 381940), (104, 271765), (113, 250120), (130, 217412), (148, 190970), (169, 167240), (185, 152776), (226, 125060), (260, 108706), (296, 95485), (338, 83620), (370, 76388), (452, 62530), (481, 58760), (520, 54353), (565, 50024), (676, 41810), (740, 38194), (845, 33448), (904, 31265), (962, 29380), (1130, 25012), (1352, 20905), (1469, 19240), (1480, 19097), (1690, 16724), (1924, 14690), (2260, 12506), (2405, 11752), (2938, 9620), (3380, 8362), (3848, 7345), (4181, 6760), (4520, 6253), (4810, 5876)]