22540720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:254

約数の個数: 80

約数和(自身を含む): 55353600

約数和(自身を除く): 32812880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 61, 62, 80, 122, 124, 149, 155, 244, 248, 298, 305, 310, 488, 496, 596, 610, 620, 745, 976, 1192, 1220, 1240, 1490, 1891, 2384, 2440, 2480, 2980, 3782, 4619, 4880, 5960, 7564, 9089, 9238, 9455, 11920, 15128, 18178, 18476, 18910, 23095, 30256, 36356, 36952, 37820, 45445, 46190, 72712, 73904, 75640, 90890, 92380, 145424, 151280, 181780, 184760, 281759, 363560, 369520, 563518, 727120, 1127036, 1408795, 2254072, 2817590, 4508144, 5635180, 11270360, 22540720]

約数ペア:

[(1, 22540720), (2, 11270360), (4, 5635180), (5, 4508144), (8, 2817590), (10, 2254072), (16, 1408795), (20, 1127036), (31, 727120), (40, 563518), (61, 369520), (62, 363560), (80, 281759), (122, 184760), (124, 181780), (149, 151280), (155, 145424), (244, 92380), (248, 90890), (298, 75640), (305, 73904), (310, 72712), (488, 46190), (496, 45445), (596, 37820), (610, 36952), (620, 36356), (745, 30256), (976, 23095), (1192, 18910), (1220, 18476), (1240, 18178), (1490, 15128), (1891, 11920), (2384, 9455), (2440, 9238), (2480, 9089), (2980, 7564), (3782, 5960), (4619, 4880)]