17804520006820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{8923}}^1\times {\mathrm{19249}}^1$

素因数の和:28325

約数の個数: 96

約数和(自身を含む): 38441807712000

約数和(自身を除く): 20637287705180

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 142, 146, 284, 292, 355, 365, 710, 730, 1420, 1460, 5183, 8923, 10366, 17846, 19249, 20732, 25915, 35692, 38498, 44615, 51830, 76996, 89230, 96245, 103660, 178460, 192490, 384980, 633533, 651379, 1267066, 1302758, 1366679, 1405177, 2534132, 2605516, 2733358, 2810354, 3167665, 3256895, 5466716, 5620708, 6335330, 6513790, 6833395, 7025885, 12670660, 13027580, 13666790, 14051770, 27333580, 28103540, 46247909, 92495818, 99767567, 171758827, 184991636, 199535134, 231239545, 343517654, 399070268, 462479090, 498837835, 687035308, 858794135, 924958180, 997675670, 1717588270, 1995351340, 3435176540, 12194876717, 12538394371, 24389753434, 25076788742, 48779506868, 50153577484, 60974383585, 62691971855, 121948767170, 125383943710, 243897534340, 250767887420, 890226000341, 1780452000682, 3560904001364, 4451130001705, 8902260003410, 17804520006820]

約数ペア:

[(1, 17804520006820), (2, 8902260003410), (4, 4451130001705), (5, 3560904001364), (10, 1780452000682), (20, 890226000341), (71, 250767887420), (73, 243897534340), (142, 125383943710), (146, 121948767170), (284, 62691971855), (292, 60974383585), (355, 50153577484), (365, 48779506868), (710, 25076788742), (730, 24389753434), (1420, 12538394371), (1460, 12194876717), (5183, 3435176540), (8923, 1995351340), (10366, 1717588270), (17846, 997675670), (19249, 924958180), (20732, 858794135), (25915, 687035308), (35692, 498837835), (38498, 462479090), (44615, 399070268), (51830, 343517654), (76996, 231239545), (89230, 199535134), (96245, 184991636), (103660, 171758827), (178460, 99767567), (192490, 92495818), (384980, 46247909), (633533, 28103540), (651379, 27333580), (1267066, 14051770), (1302758, 13666790), (1366679, 13027580), (1405177, 12670660), (2534132, 7025885), (2605516, 6833395), (2733358, 6513790), (2810354, 6335330), (3167665, 5620708), (3256895, 5466716)]