4170400

素因数分解:

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

素因数の和:434

約数の個数: 72

約数和(自身を含む): 10991484

約数和(自身を除く): 6821084

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 401, 416, 520, 650, 800, 802, 1040, 1300, 1604, 2005, 2080, 2600, 3208, 4010, 5200, 5213, 6416, 8020, 10025, 10400, 10426, 12832, 16040, 20050, 20852, 26065, 32080, 40100, 41704, 52130, 64160, 80200, 83408, 104260, 130325, 160400, 166816, 208520, 260650, 320800, 417040, 521300, 834080, 1042600, 2085200, 4170400]

約数ペア:

[(1, 4170400), (2, 2085200), (4, 1042600), (5, 834080), (8, 521300), (10, 417040), (13, 320800), (16, 260650), (20, 208520), (25, 166816), (26, 160400), (32, 130325), (40, 104260), (50, 83408), (52, 80200), (65, 64160), (80, 52130), (100, 41704), (104, 40100), (130, 32080), (160, 26065), (200, 20852), (208, 20050), (260, 16040), (325, 12832), (400, 10426), (401, 10400), (416, 10025), (520, 8020), (650, 6416), (800, 5213), (802, 5200), (1040, 4010), (1300, 3208), (1604, 2600), (2005, 2080)]