5213000

素因数分解:

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

素因数の和:435

約数の個数: 64

約数和(自身を含む): 13169520

約数和(自身を除く): 7956520

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, 650, 802, 1000, 1300, 1604, 1625, 2005, 2600, 3208, 3250, 4010, 5213, 6500, 8020, 10025, 10426, 13000, 16040, 20050, 20852, 26065, 40100, 41704, 50125, 52130, 80200, 100250, 104260, 130325, 200500, 208520, 260650, 401000, 521300, 651625, 1042600, 1303250, 2606500, 5213000]

約数ペア:

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