217780430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1511}}^1$

素因数の和:1625

約数の個数: 64

約数和(自身を含む): 470292480

約数和(自身を除く): 252512050

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 71, 142, 145, 203, 290, 355, 406, 497, 710, 994, 1015, 1511, 2030, 2059, 2485, 3022, 4118, 4970, 7555, 10295, 10577, 14413, 15110, 20590, 21154, 28826, 43819, 52885, 72065, 87638, 105770, 107281, 144130, 214562, 219095, 306733, 438190, 536405, 613466, 750967, 1072810, 1501934, 1533665, 3067330, 3111149, 3754835, 6222298, 7509670, 15555745, 21778043, 31111490, 43556086, 108890215, 217780430]

約数ペア:

[(1, 217780430), (2, 108890215), (5, 43556086), (7, 31111490), (10, 21778043), (14, 15555745), (29, 7509670), (35, 6222298), (58, 3754835), (70, 3111149), (71, 3067330), (142, 1533665), (145, 1501934), (203, 1072810), (290, 750967), (355, 613466), (406, 536405), (497, 438190), (710, 306733), (994, 219095), (1015, 214562), (1511, 144130), (2030, 107281), (2059, 105770), (2485, 87638), (3022, 72065), (4118, 52885), (4970, 43819), (7555, 28826), (10295, 21154), (10577, 20590), (14413, 15110)]