215778820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:317

約数の個数: 96

約数和(自身を含む): 497952000

約数和(自身を除く): 282173180

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 103, 148, 149, 185, 190, 206, 298, 370, 380, 412, 515, 596, 703, 740, 745, 1030, 1406, 1490, 1957, 2060, 2812, 2831, 2980, 3515, 3811, 3914, 5513, 5662, 7030, 7622, 7828, 9785, 11026, 11324, 14060, 14155, 15244, 15347, 19055, 19570, 22052, 27565, 28310, 30694, 38110, 39140, 55130, 56620, 61388, 72409, 76220, 76735, 104747, 110260, 144818, 153470, 209494, 289636, 291593, 306940, 362045, 418988, 523735, 567839, 583186, 724090, 1047470, 1135678, 1166372, 1448180, 1457965, 2094940, 2271356, 2839195, 2915930, 5678390, 5831860, 10788941, 11356780, 21577882, 43155764, 53944705, 107889410, 215778820]

約数ペア:

[(1, 215778820), (2, 107889410), (4, 53944705), (5, 43155764), (10, 21577882), (19, 11356780), (20, 10788941), (37, 5831860), (38, 5678390), (74, 2915930), (76, 2839195), (95, 2271356), (103, 2094940), (148, 1457965), (149, 1448180), (185, 1166372), (190, 1135678), (206, 1047470), (298, 724090), (370, 583186), (380, 567839), (412, 523735), (515, 418988), (596, 362045), (703, 306940), (740, 291593), (745, 289636), (1030, 209494), (1406, 153470), (1490, 144818), (1957, 110260), (2060, 104747), (2812, 76735), (2831, 76220), (2980, 72409), (3515, 61388), (3811, 56620), (3914, 55130), (5513, 39140), (5662, 38110), (7030, 30694), (7622, 28310), (7828, 27565), (9785, 22052), (11026, 19570), (11324, 19055), (14060, 15347), (14155, 15244)]