18898298240

素因数分解:

$2^7\times 5^1\times {\mathrm{163}}^1\times {\mathrm{181157}}^1$

素因数の和:181339

約数の個数: 64

約数和(自身を含む): 45456165360

約数和(自身を除く): 26557867120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 320, 326, 640, 652, 815, 1304, 1630, 2608, 3260, 5216, 6520, 10432, 13040, 20864, 26080, 52160, 104320, 181157, 362314, 724628, 905785, 1449256, 1811570, 2898512, 3623140, 5797024, 7246280, 11594048, 14492560, 23188096, 28985120, 29528591, 57970240, 59057182, 115940480, 118114364, 147642955, 236228728, 295285910, 472457456, 590571820, 944914912, 1181143640, 1889829824, 2362287280, 3779659648, 4724574560, 9449149120, 18898298240]

約数ペア:

[(1, 18898298240), (2, 9449149120), (4, 4724574560), (5, 3779659648), (8, 2362287280), (10, 1889829824), (16, 1181143640), (20, 944914912), (32, 590571820), (40, 472457456), (64, 295285910), (80, 236228728), (128, 147642955), (160, 118114364), (163, 115940480), (320, 59057182), (326, 57970240), (640, 29528591), (652, 28985120), (815, 23188096), (1304, 14492560), (1630, 11594048), (2608, 7246280), (3260, 5797024), (5216, 3623140), (6520, 2898512), (10432, 1811570), (13040, 1449256), (20864, 905785), (26080, 724628), (52160, 362314), (104320, 181157)]