161816900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7457}}^1$

素因数の和:7509

約数の個数: 72

約数和(自身を含む): 414306816

約数和(自身を除く): 252489916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 217, 310, 350, 434, 620, 700, 775, 868, 1085, 1550, 2170, 3100, 4340, 5425, 7457, 10850, 14914, 21700, 29828, 37285, 52199, 74570, 104398, 149140, 186425, 208796, 231167, 260995, 372850, 462334, 521990, 745700, 924668, 1043980, 1155835, 1304975, 1618169, 2311670, 2609950, 3236338, 4623340, 5219900, 5779175, 6472676, 8090845, 11558350, 16181690, 23116700, 32363380, 40454225, 80908450, 161816900]

約数ペア:

[(1, 161816900), (2, 80908450), (4, 40454225), (5, 32363380), (7, 23116700), (10, 16181690), (14, 11558350), (20, 8090845), (25, 6472676), (28, 5779175), (31, 5219900), (35, 4623340), (50, 3236338), (62, 2609950), (70, 2311670), (100, 1618169), (124, 1304975), (140, 1155835), (155, 1043980), (175, 924668), (217, 745700), (310, 521990), (350, 462334), (434, 372850), (620, 260995), (700, 231167), (775, 208796), (868, 186425), (1085, 149140), (1550, 104398), (2170, 74570), (3100, 52199), (4340, 37285), (5425, 29828), (7457, 21700), (10850, 14914)]