169422500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^2\times {\mathrm{401}}^1$

素因数の和:451

約数の個数: 90

約数和(自身を含む): 402185322

約数和(自身を除く): 232762822

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 169, 250, 260, 325, 338, 401, 500, 625, 650, 676, 802, 845, 1250, 1300, 1604, 1625, 1690, 2005, 2500, 3250, 3380, 4010, 4225, 5213, 6500, 8020, 8125, 8450, 10025, 10426, 16250, 16900, 20050, 20852, 21125, 26065, 32500, 40100, 42250, 50125, 52130, 67769, 84500, 100250, 104260, 105625, 130325, 135538, 200500, 211250, 250625, 260650, 271076, 338845, 422500, 501250, 521300, 651625, 677690, 1002500, 1303250, 1355380, 1694225, 2606500, 3258125, 3388450, 6516250, 6776900, 8471125, 13032500, 16942250, 33884500, 42355625, 84711250, 169422500]

約数ペア:

[(1, 169422500), (2, 84711250), (4, 42355625), (5, 33884500), (10, 16942250), (13, 13032500), (20, 8471125), (25, 6776900), (26, 6516250), (50, 3388450), (52, 3258125), (65, 2606500), (100, 1694225), (125, 1355380), (130, 1303250), (169, 1002500), (250, 677690), (260, 651625), (325, 521300), (338, 501250), (401, 422500), (500, 338845), (625, 271076), (650, 260650), (676, 250625), (802, 211250), (845, 200500), (1250, 135538), (1300, 130325), (1604, 105625), (1625, 104260), (1690, 100250), (2005, 84500), (2500, 67769), (3250, 52130), (3380, 50125), (4010, 42250), (4225, 40100), (5213, 32500), (6500, 26065), (8020, 21125), (8125, 20852), (8450, 20050), (10025, 16900), (10426, 16250)]