15880390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 48

約数和(自身を含む): 31107888

約数和(自身を除く): 15227498

約数列:

[1, 2, 5, 10, 19, 38, 53, 83, 95, 106, 166, 190, 265, 361, 415, 530, 722, 830, 1007, 1577, 1805, 2014, 3154, 3610, 4399, 5035, 7885, 8798, 10070, 15770, 19133, 21995, 29963, 38266, 43990, 59926, 83581, 95665, 149815, 167162, 191330, 299630, 417905, 835810, 1588039, 3176078, 7940195, 15880390]

約数ペア:

[(1, 15880390), (2, 7940195), (5, 3176078), (10, 1588039), (19, 835810), (38, 417905), (53, 299630), (83, 191330), (95, 167162), (106, 149815), (166, 95665), (190, 83581), (265, 59926), (361, 43990), (415, 38266), (530, 29963), (722, 21995), (830, 19133), (1007, 15770), (1577, 10070), (1805, 8798), (2014, 7885), (3154, 5035), (3610, 4399)]