40272640

素因数分解:

$2^8\times 5^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 98013888

約数和(自身を除く): 57741248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 146, 160, 256, 292, 320, 365, 431, 584, 640, 730, 862, 1168, 1280, 1460, 1724, 2155, 2336, 2920, 3448, 4310, 4672, 5840, 6896, 8620, 9344, 11680, 13792, 17240, 18688, 23360, 27584, 31463, 34480, 46720, 55168, 62926, 68960, 93440, 110336, 125852, 137920, 157315, 251704, 275840, 314630, 503408, 551680, 629260, 1006816, 1258520, 2013632, 2517040, 4027264, 5034080, 8054528, 10068160, 20136320, 40272640]

約数ペア:

[(1, 40272640), (2, 20136320), (4, 10068160), (5, 8054528), (8, 5034080), (10, 4027264), (16, 2517040), (20, 2013632), (32, 1258520), (40, 1006816), (64, 629260), (73, 551680), (80, 503408), (128, 314630), (146, 275840), (160, 251704), (256, 157315), (292, 137920), (320, 125852), (365, 110336), (431, 93440), (584, 68960), (640, 62926), (730, 55168), (862, 46720), (1168, 34480), (1280, 31463), (1460, 27584), (1724, 23360), (2155, 18688), (2336, 17240), (2920, 13792), (3448, 11680), (4310, 9344), (4672, 8620), (5840, 6896)]