171139840

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 447390720

約数和(自身を除く): 276250880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 152, 155, 160, 190, 227, 248, 256, 304, 310, 320, 380, 454, 496, 589, 608, 620, 640, 760, 908, 992, 1135, 1178, 1216, 1240, 1280, 1520, 1816, 1984, 2270, 2356, 2432, 2480, 2945, 3040, 3632, 3968, 4313, 4540, 4712, 4864, 4960, 5890, 6080, 7037, 7264, 7936, 8626, 9080, 9424, 9920, 11780, 12160, 14074, 14528, 17252, 18160, 18848, 19840, 21565, 23560, 24320, 28148, 29056, 34504, 35185, 36320, 37696, 39680, 43130, 47120, 56296, 58112, 69008, 70370, 72640, 75392, 86260, 94240, 112592, 133703, 138016, 140740, 145280, 150784, 172520, 188480, 225184, 267406, 276032, 281480, 290560, 345040, 376960, 450368, 534812, 552064, 562960, 668515, 690080, 753920, 900736, 1069624, 1104128, 1125920, 1337030, 1380160, 1801472, 2139248, 2251840, 2674060, 2760320, 4278496, 4503680, 5348120, 5520640, 8556992, 9007360, 10696240, 17113984, 21392480, 34227968, 42784960, 85569920, 171139840]

約数ペア:

[(1, 171139840), (2, 85569920), (4, 42784960), (5, 34227968), (8, 21392480), (10, 17113984), (16, 10696240), (19, 9007360), (20, 8556992), (31, 5520640), (32, 5348120), (38, 4503680), (40, 4278496), (62, 2760320), (64, 2674060), (76, 2251840), (80, 2139248), (95, 1801472), (124, 1380160), (128, 1337030), (152, 1125920), (155, 1104128), (160, 1069624), (190, 900736), (227, 753920), (248, 690080), (256, 668515), (304, 562960), (310, 552064), (320, 534812), (380, 450368), (454, 376960), (496, 345040), (589, 290560), (608, 281480), (620, 276032), (640, 267406), (760, 225184), (908, 188480), (992, 172520), (1135, 150784), (1178, 145280), (1216, 140740), (1240, 138016), (1280, 133703), (1520, 112592), (1816, 94240), (1984, 86260), (2270, 75392), (2356, 72640), (2432, 70370), (2480, 69008), (2945, 58112), (3040, 56296), (3632, 47120), (3968, 43130), (4313, 39680), (4540, 37696), (4712, 36320), (4864, 35185), (4960, 34504), (5890, 29056), (6080, 28148), (7037, 24320), (7264, 23560), (7936, 21565), (8626, 19840), (9080, 18848), (9424, 18160), (9920, 17252), (11780, 14528), (12160, 14074)]