2018050040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:501

約数の個数: 128

約数和(自身を含む): 4898880000

約数和(自身を除く): 2880829960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 149, 152, 190, 251, 284, 298, 355, 380, 502, 568, 596, 710, 745, 760, 1004, 1192, 1255, 1349, 1420, 1490, 2008, 2510, 2698, 2831, 2840, 2980, 4769, 5020, 5396, 5662, 5960, 6745, 9538, 10040, 10579, 10792, 11324, 13490, 14155, 17821, 19076, 21158, 22648, 23845, 26980, 28310, 35642, 37399, 38152, 42316, 47690, 52895, 53960, 56620, 71284, 74798, 84632, 89105, 95380, 105790, 113240, 142568, 149596, 178210, 186995, 190760, 201001, 211580, 299192, 338599, 356420, 373990, 402002, 423160, 677198, 710581, 712840, 747980, 804004, 1005005, 1354396, 1421162, 1495960, 1608008, 1692995, 2010010, 2655329, 2708792, 2842324, 3385990, 3552905, 4020020, 5310658, 5684648, 6771980, 7105810, 8040040, 10621316, 13276645, 13543960, 14211620, 21242632, 26553290, 28423240, 50451251, 53106580, 100902502, 106213160, 201805004, 252256255, 403610008, 504512510, 1009025020, 2018050040]

約数ペア:

[(1, 2018050040), (2, 1009025020), (4, 504512510), (5, 403610008), (8, 252256255), (10, 201805004), (19, 106213160), (20, 100902502), (38, 53106580), (40, 50451251), (71, 28423240), (76, 26553290), (95, 21242632), (142, 14211620), (149, 13543960), (152, 13276645), (190, 10621316), (251, 8040040), (284, 7105810), (298, 6771980), (355, 5684648), (380, 5310658), (502, 4020020), (568, 3552905), (596, 3385990), (710, 2842324), (745, 2708792), (760, 2655329), (1004, 2010010), (1192, 1692995), (1255, 1608008), (1349, 1495960), (1420, 1421162), (1490, 1354396), (2008, 1005005), (2510, 804004), (2698, 747980), (2831, 712840), (2840, 710581), (2980, 677198), (4769, 423160), (5020, 402002), (5396, 373990), (5662, 356420), (5960, 338599), (6745, 299192), (9538, 211580), (10040, 201001), (10579, 190760), (10792, 186995), (11324, 178210), (13490, 149596), (14155, 142568), (17821, 113240), (19076, 105790), (21158, 95380), (22648, 89105), (23845, 84632), (26980, 74798), (28310, 71284), (35642, 56620), (37399, 53960), (38152, 52895), (42316, 47690)]