4013900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 9843120

約数和(自身を除く): 5829220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 41, 44, 50, 55, 82, 89, 100, 110, 164, 178, 205, 220, 275, 356, 410, 445, 451, 550, 820, 890, 902, 979, 1025, 1100, 1780, 1804, 1958, 2050, 2225, 2255, 3649, 3916, 4100, 4450, 4510, 4895, 7298, 8900, 9020, 9790, 11275, 14596, 18245, 19580, 22550, 24475, 36490, 40139, 45100, 48950, 72980, 80278, 91225, 97900, 160556, 182450, 200695, 364900, 401390, 802780, 1003475, 2006950, 4013900]

約数ペア:

[(1, 4013900), (2, 2006950), (4, 1003475), (5, 802780), (10, 401390), (11, 364900), (20, 200695), (22, 182450), (25, 160556), (41, 97900), (44, 91225), (50, 80278), (55, 72980), (82, 48950), (89, 45100), (100, 40139), (110, 36490), (164, 24475), (178, 22550), (205, 19580), (220, 18245), (275, 14596), (356, 11275), (410, 9790), (445, 9020), (451, 8900), (550, 7298), (820, 4895), (890, 4510), (902, 4450), (979, 4100), (1025, 3916), (1100, 3649), (1780, 2255), (1804, 2225), (1958, 2050)]