257144940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109891}}^1$

素因数の和:109919

約数の個数: 72

約数和(自身を含む): 840014448

約数和(自身を除く): 582869508

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 109891, 219782, 329673, 439564, 549455, 659346, 989019, 1098910, 1318692, 1428583, 1648365, 1978038, 2197820, 2857166, 3296730, 3956076, 4285749, 4945095, 5714332, 6593460, 7142915, 8571498, 9890190, 12857247, 14285830, 17142996, 19780380, 21428745, 25714494, 28571660, 42857490, 51428988, 64286235, 85714980, 128572470, 257144940]

約数ペア:

[(1, 257144940), (2, 128572470), (3, 85714980), (4, 64286235), (5, 51428988), (6, 42857490), (9, 28571660), (10, 25714494), (12, 21428745), (13, 19780380), (15, 17142996), (18, 14285830), (20, 12857247), (26, 9890190), (30, 8571498), (36, 7142915), (39, 6593460), (45, 5714332), (52, 4945095), (60, 4285749), (65, 3956076), (78, 3296730), (90, 2857166), (117, 2197820), (130, 1978038), (156, 1648365), (180, 1428583), (195, 1318692), (234, 1098910), (260, 989019), (390, 659346), (468, 549455), (585, 439564), (780, 329673), (1170, 219782), (2340, 109891)]