61257520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{211}}^1$

素因数の和:434

約数の個数: 80

約数和(自身を含む): 151418880

約数和(自身を除く): 90161360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 191, 211, 304, 380, 382, 422, 760, 764, 844, 955, 1055, 1520, 1528, 1688, 1910, 2110, 3056, 3376, 3629, 3820, 4009, 4220, 7258, 7640, 8018, 8440, 14516, 15280, 16036, 16880, 18145, 20045, 29032, 32072, 36290, 40090, 40301, 58064, 64144, 72580, 80180, 80602, 145160, 160360, 161204, 201505, 290320, 320720, 322408, 403010, 644816, 765719, 806020, 1531438, 1612040, 3062876, 3224080, 3828595, 6125752, 7657190, 12251504, 15314380, 30628760, 61257520]

約数ペア:

[(1, 61257520), (2, 30628760), (4, 15314380), (5, 12251504), (8, 7657190), (10, 6125752), (16, 3828595), (19, 3224080), (20, 3062876), (38, 1612040), (40, 1531438), (76, 806020), (80, 765719), (95, 644816), (152, 403010), (190, 322408), (191, 320720), (211, 290320), (304, 201505), (380, 161204), (382, 160360), (422, 145160), (760, 80602), (764, 80180), (844, 72580), (955, 64144), (1055, 58064), (1520, 40301), (1528, 40090), (1688, 36290), (1910, 32072), (2110, 29032), (3056, 20045), (3376, 18145), (3629, 16880), (3820, 16036), (4009, 15280), (4220, 14516), (7258, 8440), (7640, 8018)]