291212890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1049}}^1$

素因数の和:1167

約数の個数: 64

約数和(自身を含む): 587865600

約数和(自身を除く): 296652710

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 71, 85, 115, 142, 170, 230, 355, 391, 710, 782, 1049, 1207, 1633, 1955, 2098, 2414, 3266, 3910, 5245, 6035, 8165, 10490, 12070, 16330, 17833, 24127, 27761, 35666, 48254, 55522, 74479, 89165, 120635, 138805, 148958, 178330, 241270, 277610, 372395, 410159, 744790, 820318, 1266143, 1713017, 2050795, 2532286, 3426034, 4101590, 6330715, 8565085, 12661430, 17130170, 29121289, 58242578, 145606445, 291212890]

約数ペア:

[(1, 291212890), (2, 145606445), (5, 58242578), (10, 29121289), (17, 17130170), (23, 12661430), (34, 8565085), (46, 6330715), (71, 4101590), (85, 3426034), (115, 2532286), (142, 2050795), (170, 1713017), (230, 1266143), (355, 820318), (391, 744790), (710, 410159), (782, 372395), (1049, 277610), (1207, 241270), (1633, 178330), (1955, 148958), (2098, 138805), (2414, 120635), (3266, 89165), (3910, 74479), (5245, 55522), (6035, 48254), (8165, 35666), (10490, 27761), (12070, 24127), (16330, 17833)]