1520405840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{5237}}^1$

素因数の和:5460

約数の個数: 80

約数和(自身を含む): 3741189120

約数和(自身を除く): 2220783280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 191, 304, 380, 382, 760, 764, 955, 1520, 1528, 1910, 3056, 3629, 3820, 5237, 7258, 7640, 10474, 14516, 15280, 18145, 20948, 26185, 29032, 36290, 41896, 52370, 58064, 72580, 83792, 99503, 104740, 145160, 199006, 209480, 290320, 398012, 418960, 497515, 796024, 995030, 1000267, 1592048, 1990060, 2000534, 3980120, 4001068, 5001335, 7960240, 8002136, 10002670, 16004272, 19005073, 20005340, 38010146, 40010680, 76020292, 80021360, 95025365, 152040584, 190050730, 304081168, 380101460, 760202920, 1520405840]

約数ペア:

[(1, 1520405840), (2, 760202920), (4, 380101460), (5, 304081168), (8, 190050730), (10, 152040584), (16, 95025365), (19, 80021360), (20, 76020292), (38, 40010680), (40, 38010146), (76, 20005340), (80, 19005073), (95, 16004272), (152, 10002670), (190, 8002136), (191, 7960240), (304, 5001335), (380, 4001068), (382, 3980120), (760, 2000534), (764, 1990060), (955, 1592048), (1520, 1000267), (1528, 995030), (1910, 796024), (3056, 497515), (3629, 418960), (3820, 398012), (5237, 290320), (7258, 209480), (7640, 199006), (10474, 145160), (14516, 104740), (15280, 99503), (18145, 83792), (20948, 72580), (26185, 58064), (29032, 52370), (36290, 41896)]