399726404

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{929}}^1$

素因数の和:1089

約数の個数: 72

約数和(自身を含む): 886609920

約数和(自身を除く): 486883516

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 127, 154, 242, 254, 308, 484, 508, 847, 889, 929, 1397, 1694, 1778, 1858, 2794, 3388, 3556, 3716, 5588, 6503, 9779, 10219, 13006, 15367, 19558, 20438, 26012, 30734, 39116, 40876, 61468, 71533, 107569, 112409, 117983, 143066, 215138, 224818, 235966, 286132, 430276, 449636, 471932, 786863, 825881, 1297813, 1573726, 1651762, 2595626, 3147452, 3303524, 5191252, 9084691, 14275943, 18169382, 28551886, 36338764, 57103772, 99931601, 199863202, 399726404]

約数ペア:

[(1, 399726404), (2, 199863202), (4, 99931601), (7, 57103772), (11, 36338764), (14, 28551886), (22, 18169382), (28, 14275943), (44, 9084691), (77, 5191252), (121, 3303524), (127, 3147452), (154, 2595626), (242, 1651762), (254, 1573726), (308, 1297813), (484, 825881), (508, 786863), (847, 471932), (889, 449636), (929, 430276), (1397, 286132), (1694, 235966), (1778, 224818), (1858, 215138), (2794, 143066), (3388, 117983), (3556, 112409), (3716, 107569), (5588, 71533), (6503, 61468), (9779, 40876), (10219, 39116), (13006, 30734), (15367, 26012), (19558, 20438)]