156398720

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7883}}^1$

素因数の和:7933

約数の個数: 64

約数和(自身を含む): 386000640

約数和(自身を除く): 229601920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 7883, 9920, 15766, 19840, 31532, 39415, 63064, 78830, 126128, 157660, 244373, 252256, 315320, 488746, 504512, 630640, 977492, 1009024, 1221865, 1261280, 1954984, 2443730, 2522560, 3909968, 4887460, 5045120, 7819936, 9774920, 15639872, 19549840, 31279744, 39099680, 78199360, 156398720]

約数ペア:

[(1, 156398720), (2, 78199360), (4, 39099680), (5, 31279744), (8, 19549840), (10, 15639872), (16, 9774920), (20, 7819936), (31, 5045120), (32, 4887460), (40, 3909968), (62, 2522560), (64, 2443730), (80, 1954984), (124, 1261280), (128, 1221865), (155, 1009024), (160, 977492), (248, 630640), (310, 504512), (320, 488746), (496, 315320), (620, 252256), (640, 244373), (992, 157660), (1240, 126128), (1984, 78830), (2480, 63064), (3968, 39415), (4960, 31532), (7883, 19840), (9920, 15766)]