28239900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{557}}^1$

素因数の和:600

約数の個数: 108

約数和(自身を含む): 88634952

約数和(自身を除く): 60395052

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 169, 195, 260, 300, 325, 338, 390, 507, 557, 650, 676, 780, 845, 975, 1014, 1114, 1300, 1671, 1690, 1950, 2028, 2228, 2535, 2785, 3342, 3380, 3900, 4225, 5070, 5570, 6684, 7241, 8355, 8450, 10140, 11140, 12675, 13925, 14482, 16710, 16900, 21723, 25350, 27850, 28964, 33420, 36205, 41775, 43446, 50700, 55700, 72410, 83550, 86892, 94133, 108615, 144820, 167100, 181025, 188266, 217230, 282399, 362050, 376532, 434460, 470665, 543075, 564798, 724100, 941330, 1086150, 1129596, 1411995, 1882660, 2172300, 2353325, 2823990, 4706650, 5647980, 7059975, 9413300, 14119950, 28239900]

約数ペア:

[(1, 28239900), (2, 14119950), (3, 9413300), (4, 7059975), (5, 5647980), (6, 4706650), (10, 2823990), (12, 2353325), (13, 2172300), (15, 1882660), (20, 1411995), (25, 1129596), (26, 1086150), (30, 941330), (39, 724100), (50, 564798), (52, 543075), (60, 470665), (65, 434460), (75, 376532), (78, 362050), (100, 282399), (130, 217230), (150, 188266), (156, 181025), (169, 167100), (195, 144820), (260, 108615), (300, 94133), (325, 86892), (338, 83550), (390, 72410), (507, 55700), (557, 50700), (650, 43446), (676, 41775), (780, 36205), (845, 33420), (975, 28964), (1014, 27850), (1114, 25350), (1300, 21723), (1671, 16900), (1690, 16710), (1950, 14482), (2028, 13925), (2228, 12675), (2535, 11140), (2785, 10140), (3342, 8450), (3380, 8355), (3900, 7241), (4225, 6684), (5070, 5570)]