1961960

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:56

約数の個数: 128

約数和(自身を含む): 6048000

約数和(自身を除く): 4086040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 49, 52, 55, 56, 65, 70, 77, 88, 91, 98, 104, 110, 130, 140, 143, 154, 182, 196, 220, 245, 260, 280, 286, 308, 343, 364, 385, 392, 440, 455, 490, 520, 539, 572, 616, 637, 686, 715, 728, 770, 910, 980, 1001, 1078, 1144, 1274, 1372, 1430, 1540, 1715, 1820, 1960, 2002, 2156, 2548, 2695, 2744, 2860, 3080, 3185, 3430, 3640, 3773, 4004, 4312, 4459, 5005, 5096, 5390, 5720, 6370, 6860, 7007, 7546, 8008, 8918, 10010, 10780, 12740, 13720, 14014, 15092, 17836, 18865, 20020, 21560, 22295, 25480, 28028, 30184, 35035, 35672, 37730, 40040, 44590, 49049, 56056, 70070, 75460, 89180, 98098, 140140, 150920, 178360, 196196, 245245, 280280, 392392, 490490, 980980, 1961960]

約数ペア:

[(1, 1961960), (2, 980980), (4, 490490), (5, 392392), (7, 280280), (8, 245245), (10, 196196), (11, 178360), (13, 150920), (14, 140140), (20, 98098), (22, 89180), (26, 75460), (28, 70070), (35, 56056), (40, 49049), (44, 44590), (49, 40040), (52, 37730), (55, 35672), (56, 35035), (65, 30184), (70, 28028), (77, 25480), (88, 22295), (91, 21560), (98, 20020), (104, 18865), (110, 17836), (130, 15092), (140, 14014), (143, 13720), (154, 12740), (182, 10780), (196, 10010), (220, 8918), (245, 8008), (260, 7546), (280, 7007), (286, 6860), (308, 6370), (343, 5720), (364, 5390), (385, 5096), (392, 5005), (440, 4459), (455, 4312), (490, 4004), (520, 3773), (539, 3640), (572, 3430), (616, 3185), (637, 3080), (686, 2860), (715, 2744), (728, 2695), (770, 2548), (910, 2156), (980, 2002), (1001, 1960), (1078, 1820), (1144, 1715), (1274, 1540), (1372, 1430)]