161903440

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{87991}}^1$

素因数の和:88027

約数の個数: 40

約数和(自身を含む): 392796288

約数和(自身を除く): 230892848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 87991, 175982, 351964, 439955, 703928, 879910, 1407856, 1759820, 2023793, 3519640, 4047586, 7039280, 8095172, 10118965, 16190344, 20237930, 32380688, 40475860, 80951720, 161903440]

約数ペア:

[(1, 161903440), (2, 80951720), (4, 40475860), (5, 32380688), (8, 20237930), (10, 16190344), (16, 10118965), (20, 8095172), (23, 7039280), (40, 4047586), (46, 3519640), (80, 2023793), (92, 1759820), (115, 1407856), (184, 879910), (230, 703928), (368, 439955), (460, 351964), (920, 175982), (1840, 87991)]