1685804920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1\times {\mathrm{2003}}^1$

素因数の和:2464

約数の個数: 64

約数和(自身を含む): 3876297120

約数和(自身を除く): 2190492200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 397, 424, 530, 794, 1060, 1588, 1985, 2003, 2120, 3176, 3970, 4006, 7940, 8012, 10015, 15880, 16024, 20030, 21041, 40060, 42082, 80120, 84164, 105205, 106159, 168328, 210410, 212318, 420820, 424636, 530795, 795191, 841640, 849272, 1061590, 1590382, 2123180, 3180764, 3975955, 4246360, 6361528, 7951910, 15903820, 31807640, 42145123, 84290246, 168580492, 210725615, 337160984, 421451230, 842902460, 1685804920]

約数ペア:

[(1, 1685804920), (2, 842902460), (4, 421451230), (5, 337160984), (8, 210725615), (10, 168580492), (20, 84290246), (40, 42145123), (53, 31807640), (106, 15903820), (212, 7951910), (265, 6361528), (397, 4246360), (424, 3975955), (530, 3180764), (794, 2123180), (1060, 1590382), (1588, 1061590), (1985, 849272), (2003, 841640), (2120, 795191), (3176, 530795), (3970, 424636), (4006, 420820), (7940, 212318), (8012, 210410), (10015, 168328), (15880, 106159), (16024, 105205), (20030, 84164), (21041, 80120), (40060, 42082)]