13131280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 32944320

約数和(自身を除く): 19813040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 53, 76, 80, 95, 106, 152, 163, 190, 212, 265, 304, 326, 380, 424, 530, 652, 760, 815, 848, 1007, 1060, 1304, 1520, 1630, 2014, 2120, 2608, 3097, 3260, 4028, 4240, 5035, 6194, 6520, 8056, 8639, 10070, 12388, 13040, 15485, 16112, 17278, 20140, 24776, 30970, 34556, 40280, 43195, 49552, 61940, 69112, 80560, 86390, 123880, 138224, 164141, 172780, 247760, 328282, 345560, 656564, 691120, 820705, 1313128, 1641410, 2626256, 3282820, 6565640, 13131280]

約数ペア:

[(1, 13131280), (2, 6565640), (4, 3282820), (5, 2626256), (8, 1641410), (10, 1313128), (16, 820705), (19, 691120), (20, 656564), (38, 345560), (40, 328282), (53, 247760), (76, 172780), (80, 164141), (95, 138224), (106, 123880), (152, 86390), (163, 80560), (190, 69112), (212, 61940), (265, 49552), (304, 43195), (326, 40280), (380, 34556), (424, 30970), (530, 24776), (652, 20140), (760, 17278), (815, 16112), (848, 15485), (1007, 13040), (1060, 12388), (1304, 10070), (1520, 8639), (1630, 8056), (2014, 6520), (2120, 6194), (2608, 5035), (3097, 4240), (3260, 4028)]