405894160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:381

約数の個数: 160

約数和(自身を含む): 1129070592

約数和(自身を除く): 723176432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 103, 112, 124, 140, 155, 206, 217, 227, 248, 280, 310, 412, 434, 454, 496, 515, 560, 620, 721, 824, 868, 908, 1030, 1085, 1135, 1240, 1442, 1589, 1648, 1736, 1816, 2060, 2170, 2270, 2480, 2884, 3178, 3193, 3472, 3605, 3632, 4120, 4340, 4540, 5768, 6356, 6386, 7037, 7210, 7945, 8240, 8680, 9080, 11536, 12712, 12772, 14074, 14420, 15890, 15965, 17360, 18160, 22351, 23381, 25424, 25544, 28148, 28840, 31780, 31930, 35185, 44702, 46762, 49259, 51088, 56296, 57680, 63560, 63860, 70370, 89404, 93524, 98518, 111755, 112592, 116905, 127120, 127720, 140740, 163667, 178808, 187048, 197036, 223510, 233810, 246295, 255440, 281480, 327334, 357616, 374096, 394072, 447020, 467620, 492590, 562960, 654668, 724811, 788144, 818335, 894040, 935240, 985180, 1309336, 1449622, 1636670, 1788080, 1870480, 1970360, 2618672, 2899244, 3273340, 3624055, 3940720, 5073677, 5798488, 6546680, 7248110, 10147354, 11596976, 13093360, 14496220, 20294708, 25368385, 28992440, 40589416, 50736770, 57984880, 81178832, 101473540, 202947080, 405894160]

約数ペア:

[(1, 405894160), (2, 202947080), (4, 101473540), (5, 81178832), (7, 57984880), (8, 50736770), (10, 40589416), (14, 28992440), (16, 25368385), (20, 20294708), (28, 14496220), (31, 13093360), (35, 11596976), (40, 10147354), (56, 7248110), (62, 6546680), (70, 5798488), (80, 5073677), (103, 3940720), (112, 3624055), (124, 3273340), (140, 2899244), (155, 2618672), (206, 1970360), (217, 1870480), (227, 1788080), (248, 1636670), (280, 1449622), (310, 1309336), (412, 985180), (434, 935240), (454, 894040), (496, 818335), (515, 788144), (560, 724811), (620, 654668), (721, 562960), (824, 492590), (868, 467620), (908, 447020), (1030, 394072), (1085, 374096), (1135, 357616), (1240, 327334), (1442, 281480), (1589, 255440), (1648, 246295), (1736, 233810), (1816, 223510), (2060, 197036), (2170, 187048), (2270, 178808), (2480, 163667), (2884, 140740), (3178, 127720), (3193, 127120), (3472, 116905), (3605, 112592), (3632, 111755), (4120, 98518), (4340, 93524), (4540, 89404), (5768, 70370), (6356, 63860), (6386, 63560), (7037, 57680), (7210, 56296), (7945, 51088), (8240, 49259), (8680, 46762), (9080, 44702), (11536, 35185), (12712, 31930), (12772, 31780), (14074, 28840), (14420, 28148), (15890, 25544), (15965, 25424), (17360, 23381), (18160, 22351)]