20136320

素因数分解:

$2^7\times 5^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:523

約数の個数: 64

約数和(自身を含む): 48911040

約数和(自身を除く): 28774720

約数列:

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

約数ペア:

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