80700980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{4007}}^1$

素因数の和:4088

約数の個数: 48

約数和(自身を含む): 181802880

約数和(自身を除く): 101101900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 1007, 1060, 2014, 4007, 4028, 5035, 8014, 10070, 16028, 20035, 20140, 40070, 76133, 80140, 152266, 212371, 304532, 380665, 424742, 761330, 849484, 1061855, 1522660, 2123710, 4035049, 4247420, 8070098, 16140196, 20175245, 40350490, 80700980]

約数ペア:

[(1, 80700980), (2, 40350490), (4, 20175245), (5, 16140196), (10, 8070098), (19, 4247420), (20, 4035049), (38, 2123710), (53, 1522660), (76, 1061855), (95, 849484), (106, 761330), (190, 424742), (212, 380665), (265, 304532), (380, 212371), (530, 152266), (1007, 80140), (1060, 76133), (2014, 40070), (4007, 20140), (4028, 20035), (5035, 16028), (8014, 10070)]