213579760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{619}}^1$

素因数の和:878

約数の個数: 80

約数和(自身を含む): 525859200

約数和(自身を除く): 312279440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 227, 304, 380, 454, 619, 760, 908, 1135, 1238, 1520, 1816, 2270, 2476, 3095, 3632, 4313, 4540, 4952, 6190, 8626, 9080, 9904, 11761, 12380, 17252, 18160, 21565, 23522, 24760, 34504, 43130, 47044, 49520, 58805, 69008, 86260, 94088, 117610, 140513, 172520, 188176, 235220, 281026, 345040, 470440, 562052, 702565, 940880, 1124104, 1405130, 2248208, 2669747, 2810260, 5339494, 5620520, 10678988, 11241040, 13348735, 21357976, 26697470, 42715952, 53394940, 106789880, 213579760]

約数ペア:

[(1, 213579760), (2, 106789880), (4, 53394940), (5, 42715952), (8, 26697470), (10, 21357976), (16, 13348735), (19, 11241040), (20, 10678988), (38, 5620520), (40, 5339494), (76, 2810260), (80, 2669747), (95, 2248208), (152, 1405130), (190, 1124104), (227, 940880), (304, 702565), (380, 562052), (454, 470440), (619, 345040), (760, 281026), (908, 235220), (1135, 188176), (1238, 172520), (1520, 140513), (1816, 117610), (2270, 94088), (2476, 86260), (3095, 69008), (3632, 58805), (4313, 49520), (4540, 47044), (4952, 43130), (6190, 34504), (8626, 24760), (9080, 23522), (9904, 21565), (11761, 18160), (12380, 17252)]