205121340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1621}}^1$

素因数の和:1692

約数の個数: 144

約数和(自身を含む): 673065120

約数和(自身を除く): 467943780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 37, 38, 45, 57, 60, 74, 76, 90, 95, 111, 114, 148, 171, 180, 185, 190, 222, 228, 285, 333, 342, 370, 380, 444, 555, 570, 666, 684, 703, 740, 855, 1110, 1140, 1332, 1406, 1621, 1665, 1710, 2109, 2220, 2812, 3242, 3330, 3420, 3515, 4218, 4863, 6327, 6484, 6660, 7030, 8105, 8436, 9726, 10545, 12654, 14060, 14589, 16210, 19452, 21090, 24315, 25308, 29178, 30799, 31635, 32420, 42180, 48630, 58356, 59977, 61598, 63270, 72945, 92397, 97260, 119954, 123196, 126540, 145890, 153995, 179931, 184794, 239908, 277191, 291780, 299885, 307990, 359862, 369588, 461985, 539793, 554382, 599770, 615980, 719724, 899655, 923970, 1079586, 1108764, 1139563, 1199540, 1385955, 1799310, 1847940, 2159172, 2279126, 2698965, 2771910, 3418689, 3598620, 4558252, 5397930, 5543820, 5697815, 6837378, 10256067, 10795860, 11395630, 13674756, 17093445, 20512134, 22791260, 34186890, 41024268, 51280335, 68373780, 102560670, 205121340]

約数ペア:

[(1, 205121340), (2, 102560670), (3, 68373780), (4, 51280335), (5, 41024268), (6, 34186890), (9, 22791260), (10, 20512134), (12, 17093445), (15, 13674756), (18, 11395630), (19, 10795860), (20, 10256067), (30, 6837378), (36, 5697815), (37, 5543820), (38, 5397930), (45, 4558252), (57, 3598620), (60, 3418689), (74, 2771910), (76, 2698965), (90, 2279126), (95, 2159172), (111, 1847940), (114, 1799310), (148, 1385955), (171, 1199540), (180, 1139563), (185, 1108764), (190, 1079586), (222, 923970), (228, 899655), (285, 719724), (333, 615980), (342, 599770), (370, 554382), (380, 539793), (444, 461985), (555, 369588), (570, 359862), (666, 307990), (684, 299885), (703, 291780), (740, 277191), (855, 239908), (1110, 184794), (1140, 179931), (1332, 153995), (1406, 145890), (1621, 126540), (1665, 123196), (1710, 119954), (2109, 97260), (2220, 92397), (2812, 72945), (3242, 63270), (3330, 61598), (3420, 59977), (3515, 58356), (4218, 48630), (4863, 42180), (6327, 32420), (6484, 31635), (6660, 30799), (7030, 29178), (8105, 25308), (8436, 24315), (9726, 21090), (10545, 19452), (12654, 16210), (14060, 14589)]