204906320

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:484

約数の個数: 80

約数和(自身を含む): 488956800

約数和(自身を除く): 284050480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 199, 211, 244, 305, 398, 422, 488, 610, 796, 844, 976, 995, 1055, 1220, 1592, 1688, 1990, 2110, 2440, 3184, 3376, 3980, 4220, 4880, 7960, 8440, 12139, 12871, 15920, 16880, 24278, 25742, 41989, 48556, 51484, 60695, 64355, 83978, 97112, 102968, 121390, 128710, 167956, 194224, 205936, 209945, 242780, 257420, 335912, 419890, 485560, 514840, 671824, 839780, 971120, 1029680, 1679560, 2561329, 3359120, 5122658, 10245316, 12806645, 20490632, 25613290, 40981264, 51226580, 102453160, 204906320]

約数ペア:

[(1, 204906320), (2, 102453160), (4, 51226580), (5, 40981264), (8, 25613290), (10, 20490632), (16, 12806645), (20, 10245316), (40, 5122658), (61, 3359120), (80, 2561329), (122, 1679560), (199, 1029680), (211, 971120), (244, 839780), (305, 671824), (398, 514840), (422, 485560), (488, 419890), (610, 335912), (796, 257420), (844, 242780), (976, 209945), (995, 205936), (1055, 194224), (1220, 167956), (1592, 128710), (1688, 121390), (1990, 102968), (2110, 97112), (2440, 83978), (3184, 64355), (3376, 60695), (3980, 51484), (4220, 48556), (4880, 41989), (7960, 25742), (8440, 24278), (12139, 16880), (12871, 15920)]