201993520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1031}}^1$

素因数の和:1154

約数の個数: 80

約数和(自身を含む): 491397120

約数和(自身を除く): 289403600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 79, 80, 124, 155, 158, 248, 310, 316, 395, 496, 620, 632, 790, 1031, 1240, 1264, 1580, 2062, 2449, 2480, 3160, 4124, 4898, 5155, 6320, 8248, 9796, 10310, 12245, 16496, 19592, 20620, 24490, 31961, 39184, 41240, 48980, 63922, 81449, 82480, 97960, 127844, 159805, 162898, 195920, 255688, 319610, 325796, 407245, 511376, 639220, 651592, 814490, 1278440, 1303184, 1628980, 2524919, 2556880, 3257960, 5049838, 6515920, 10099676, 12624595, 20199352, 25249190, 40398704, 50498380, 100996760, 201993520]

約数ペア:

[(1, 201993520), (2, 100996760), (4, 50498380), (5, 40398704), (8, 25249190), (10, 20199352), (16, 12624595), (20, 10099676), (31, 6515920), (40, 5049838), (62, 3257960), (79, 2556880), (80, 2524919), (124, 1628980), (155, 1303184), (158, 1278440), (248, 814490), (310, 651592), (316, 639220), (395, 511376), (496, 407245), (620, 325796), (632, 319610), (790, 255688), (1031, 195920), (1240, 162898), (1264, 159805), (1580, 127844), (2062, 97960), (2449, 82480), (2480, 81449), (3160, 63922), (4124, 48980), (4898, 41240), (5155, 39184), (6320, 31961), (8248, 24490), (9796, 20620), (10310, 19592), (12245, 16496)]