20247590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 42550272

約数和(自身を除く): 22302682

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 53, 55, 106, 110, 115, 151, 230, 253, 265, 302, 506, 530, 583, 755, 1166, 1219, 1265, 1510, 1661, 2438, 2530, 2915, 3322, 3473, 5830, 6095, 6946, 8003, 8305, 12190, 13409, 16006, 16610, 17365, 26818, 34730, 38203, 40015, 67045, 76406, 80030, 88033, 134090, 176066, 184069, 191015, 368138, 382030, 440165, 880330, 920345, 1840690, 2024759, 4049518, 10123795, 20247590]

約数ペア:

[(1, 20247590), (2, 10123795), (5, 4049518), (10, 2024759), (11, 1840690), (22, 920345), (23, 880330), (46, 440165), (53, 382030), (55, 368138), (106, 191015), (110, 184069), (115, 176066), (151, 134090), (230, 88033), (253, 80030), (265, 76406), (302, 67045), (506, 40015), (530, 38203), (583, 34730), (755, 26818), (1166, 17365), (1219, 16610), (1265, 16006), (1510, 13409), (1661, 12190), (2438, 8305), (2530, 8003), (2915, 6946), (3322, 6095), (3473, 5830)]