42780720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{449}}^1$

素因数の和:862

約数の個数: 80

約数和(自身を含む): 133250400

約数和(自身を除く): 90469680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 397, 449, 794, 898, 1191, 1347, 1588, 1796, 1985, 2245, 2382, 2694, 3176, 3592, 3970, 4490, 4764, 5388, 5955, 6352, 6735, 7184, 7940, 8980, 9528, 10776, 11910, 13470, 15880, 17960, 19056, 21552, 23820, 26940, 31760, 35920, 47640, 53880, 95280, 107760, 178253, 356506, 534759, 713012, 891265, 1069518, 1426024, 1782530, 2139036, 2673795, 2852048, 3565060, 4278072, 5347590, 7130120, 8556144, 10695180, 14260240, 21390360, 42780720]

約数ペア:

[(1, 42780720), (2, 21390360), (3, 14260240), (4, 10695180), (5, 8556144), (6, 7130120), (8, 5347590), (10, 4278072), (12, 3565060), (15, 2852048), (16, 2673795), (20, 2139036), (24, 1782530), (30, 1426024), (40, 1069518), (48, 891265), (60, 713012), (80, 534759), (120, 356506), (240, 178253), (397, 107760), (449, 95280), (794, 53880), (898, 47640), (1191, 35920), (1347, 31760), (1588, 26940), (1796, 23820), (1985, 21552), (2245, 19056), (2382, 17960), (2694, 15880), (3176, 13470), (3592, 11910), (3970, 10776), (4490, 9528), (4764, 8980), (5388, 7940), (5955, 7184), (6352, 6735)]