203428225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{739}}^1$

素因数の和:791

約数の個数: 72

約数和(自身を含む): 341714240

約数和(自身を除く): 138286015

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 121, 143, 175, 275, 325, 385, 455, 605, 715, 739, 847, 1001, 1573, 1925, 2275, 3025, 3575, 3695, 4235, 5005, 5173, 7865, 8129, 9607, 11011, 18475, 21175, 25025, 25865, 39325, 40645, 48035, 55055, 56903, 67249, 89419, 105677, 129325, 203225, 240175, 275275, 284515, 336245, 447095, 528385, 625933, 739739, 1162447, 1422575, 1681225, 2235475, 2641925, 3129665, 3698695, 5812235, 8137129, 15648325, 18493475, 29061175, 40685645, 203428225]

約数ペア:

[(1, 203428225), (5, 40685645), (7, 29061175), (11, 18493475), (13, 15648325), (25, 8137129), (35, 5812235), (55, 3698695), (65, 3129665), (77, 2641925), (91, 2235475), (121, 1681225), (143, 1422575), (175, 1162447), (275, 739739), (325, 625933), (385, 528385), (455, 447095), (605, 336245), (715, 284515), (739, 275275), (847, 240175), (1001, 203225), (1573, 129325), (1925, 105677), (2275, 89419), (3025, 67249), (3575, 56903), (3695, 55055), (4235, 48035), (5005, 40645), (5173, 39325), (7865, 25865), (8129, 25025), (9607, 21175), (11011, 18475)]