155658440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:355

約数の個数: 128

約数和(自身を含む): 420249600

約数和(自身を除く): 264591160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 79, 124, 140, 155, 158, 217, 227, 248, 280, 310, 316, 395, 434, 454, 553, 620, 632, 790, 868, 908, 1085, 1106, 1135, 1240, 1580, 1589, 1736, 1816, 2170, 2212, 2270, 2449, 2765, 3160, 3178, 4340, 4424, 4540, 4898, 5530, 6356, 7037, 7945, 8680, 9080, 9796, 11060, 12245, 12712, 14074, 15890, 17143, 17933, 19592, 22120, 24490, 28148, 31780, 34286, 35185, 35866, 48980, 49259, 56296, 63560, 68572, 70370, 71732, 85715, 89665, 97960, 98518, 125531, 137144, 140740, 143464, 171430, 179330, 197036, 246295, 251062, 281480, 342860, 358660, 394072, 492590, 502124, 555923, 627655, 685720, 717320, 985180, 1004248, 1111846, 1255310, 1970360, 2223692, 2510620, 2779615, 3891461, 4447384, 5021240, 5559230, 7782922, 11118460, 15565844, 19457305, 22236920, 31131688, 38914610, 77829220, 155658440]

約数ペア:

[(1, 155658440), (2, 77829220), (4, 38914610), (5, 31131688), (7, 22236920), (8, 19457305), (10, 15565844), (14, 11118460), (20, 7782922), (28, 5559230), (31, 5021240), (35, 4447384), (40, 3891461), (56, 2779615), (62, 2510620), (70, 2223692), (79, 1970360), (124, 1255310), (140, 1111846), (155, 1004248), (158, 985180), (217, 717320), (227, 685720), (248, 627655), (280, 555923), (310, 502124), (316, 492590), (395, 394072), (434, 358660), (454, 342860), (553, 281480), (620, 251062), (632, 246295), (790, 197036), (868, 179330), (908, 171430), (1085, 143464), (1106, 140740), (1135, 137144), (1240, 125531), (1580, 98518), (1589, 97960), (1736, 89665), (1816, 85715), (2170, 71732), (2212, 70370), (2270, 68572), (2449, 63560), (2765, 56296), (3160, 49259), (3178, 48980), (4340, 35866), (4424, 35185), (4540, 34286), (4898, 31780), (5530, 28148), (6356, 24490), (7037, 22120), (7945, 19592), (8680, 17933), (9080, 17143), (9796, 15890), (11060, 14074), (12245, 12712)]