80821820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{4013}}^1$

素因数の和:4094

約数の個数: 48

約数和(自身を含む): 182075040

約数和(自身を除く): 101253220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 1007, 1060, 2014, 4013, 4028, 5035, 8026, 10070, 16052, 20065, 20140, 40130, 76247, 80260, 152494, 212689, 304988, 381235, 425378, 762470, 850756, 1063445, 1524940, 2126890, 4041091, 4253780, 8082182, 16164364, 20205455, 40410910, 80821820]

約数ペア:

[(1, 80821820), (2, 40410910), (4, 20205455), (5, 16164364), (10, 8082182), (19, 4253780), (20, 4041091), (38, 2126890), (53, 1524940), (76, 1063445), (95, 850756), (106, 762470), (190, 425378), (212, 381235), (265, 304988), (380, 212689), (530, 152494), (1007, 80260), (1060, 76247), (2014, 40130), (4013, 20140), (4028, 20065), (5035, 16052), (8026, 10070)]