28987820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:155

約数の個数: 96

約数和(自身を含む): 68584320

約数和(自身を除く): 39596500

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 41, 46, 53, 58, 82, 92, 106, 115, 116, 145, 164, 205, 212, 230, 265, 290, 410, 460, 530, 580, 667, 820, 943, 1060, 1189, 1219, 1334, 1537, 1886, 2173, 2378, 2438, 2668, 3074, 3335, 3772, 4346, 4715, 4756, 4876, 5945, 6095, 6148, 6670, 7685, 8692, 9430, 10865, 11890, 12190, 13340, 15370, 18860, 21730, 23780, 24380, 27347, 30740, 35351, 43460, 49979, 54694, 63017, 70702, 99958, 109388, 126034, 136735, 141404, 176755, 199916, 249895, 252068, 273470, 315085, 353510, 499790, 546940, 630170, 707020, 999580, 1260340, 1449391, 2898782, 5797564, 7246955, 14493910, 28987820]

約数ペア:

[(1, 28987820), (2, 14493910), (4, 7246955), (5, 5797564), (10, 2898782), (20, 1449391), (23, 1260340), (29, 999580), (41, 707020), (46, 630170), (53, 546940), (58, 499790), (82, 353510), (92, 315085), (106, 273470), (115, 252068), (116, 249895), (145, 199916), (164, 176755), (205, 141404), (212, 136735), (230, 126034), (265, 109388), (290, 99958), (410, 70702), (460, 63017), (530, 54694), (580, 49979), (667, 43460), (820, 35351), (943, 30740), (1060, 27347), (1189, 24380), (1219, 23780), (1334, 21730), (1537, 18860), (1886, 15370), (2173, 13340), (2378, 12190), (2438, 11890), (2668, 10865), (3074, 9430), (3335, 8692), (3772, 7685), (4346, 6670), (4715, 6148), (4756, 6095), (4876, 5945)]