161496320

素因数分解:

$2^8\times 5^1\times {\mathrm{281}}^1\times {\mathrm{449}}^1$

素因数の和:751

約数の個数: 72

約数和(自身を含む): 389075400

約数和(自身を除く): 227579080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 281, 320, 449, 562, 640, 898, 1124, 1280, 1405, 1796, 2245, 2248, 2810, 3592, 4490, 4496, 5620, 7184, 8980, 8992, 11240, 14368, 17960, 17984, 22480, 28736, 35920, 35968, 44960, 57472, 71840, 71936, 89920, 114944, 126169, 143680, 179840, 252338, 287360, 359680, 504676, 574720, 630845, 1009352, 1261690, 2018704, 2523380, 4037408, 5046760, 8074816, 10093520, 16149632, 20187040, 32299264, 40374080, 80748160, 161496320]

約数ペア:

[(1, 161496320), (2, 80748160), (4, 40374080), (5, 32299264), (8, 20187040), (10, 16149632), (16, 10093520), (20, 8074816), (32, 5046760), (40, 4037408), (64, 2523380), (80, 2018704), (128, 1261690), (160, 1009352), (256, 630845), (281, 574720), (320, 504676), (449, 359680), (562, 287360), (640, 252338), (898, 179840), (1124, 143680), (1280, 126169), (1405, 114944), (1796, 89920), (2245, 71936), (2248, 71840), (2810, 57472), (3592, 44960), (4490, 35968), (4496, 35920), (5620, 28736), (7184, 22480), (8980, 17984), (8992, 17960), (11240, 14368)]