26065000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 65932020

約数和(自身を除く): 39867020

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 401, 500, 520, 625, 650, 802, 1000, 1250, 1300, 1604, 1625, 2005, 2500, 2600, 3208, 3250, 4010, 5000, 5213, 6500, 8020, 8125, 10025, 10426, 13000, 16040, 16250, 20050, 20852, 26065, 32500, 40100, 41704, 50125, 52130, 65000, 80200, 100250, 104260, 130325, 200500, 208520, 250625, 260650, 401000, 501250, 521300, 651625, 1002500, 1042600, 1303250, 2005000, 2606500, 3258125, 5213000, 6516250, 13032500, 26065000]

約数ペア:

[(1, 26065000), (2, 13032500), (4, 6516250), (5, 5213000), (8, 3258125), (10, 2606500), (13, 2005000), (20, 1303250), (25, 1042600), (26, 1002500), (40, 651625), (50, 521300), (52, 501250), (65, 401000), (100, 260650), (104, 250625), (125, 208520), (130, 200500), (200, 130325), (250, 104260), (260, 100250), (325, 80200), (401, 65000), (500, 52130), (520, 50125), (625, 41704), (650, 40100), (802, 32500), (1000, 26065), (1250, 20852), (1300, 20050), (1604, 16250), (1625, 16040), (2005, 13000), (2500, 10426), (2600, 10025), (3208, 8125), (3250, 8020), (4010, 6500), (5000, 5213)]