28169020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 71124480

約数和(自身を除く): 42955460

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 23, 38, 44, 46, 55, 76, 92, 95, 110, 115, 190, 209, 220, 230, 253, 293, 380, 418, 437, 460, 506, 586, 836, 874, 1012, 1045, 1172, 1265, 1465, 1748, 2090, 2185, 2530, 2930, 3223, 4180, 4370, 4807, 5060, 5567, 5860, 6446, 6739, 8740, 9614, 11134, 12892, 13478, 16115, 19228, 22268, 24035, 26956, 27835, 32230, 33695, 48070, 55670, 61237, 64460, 67390, 74129, 96140, 111340, 122474, 128041, 134780, 148258, 244948, 256082, 296516, 306185, 370645, 512164, 612370, 640205, 741290, 1224740, 1280410, 1408451, 1482580, 2560820, 2816902, 5633804, 7042255, 14084510, 28169020]

約数ペア:

[(1, 28169020), (2, 14084510), (4, 7042255), (5, 5633804), (10, 2816902), (11, 2560820), (19, 1482580), (20, 1408451), (22, 1280410), (23, 1224740), (38, 741290), (44, 640205), (46, 612370), (55, 512164), (76, 370645), (92, 306185), (95, 296516), (110, 256082), (115, 244948), (190, 148258), (209, 134780), (220, 128041), (230, 122474), (253, 111340), (293, 96140), (380, 74129), (418, 67390), (437, 64460), (460, 61237), (506, 55670), (586, 48070), (836, 33695), (874, 32230), (1012, 27835), (1045, 26956), (1172, 24035), (1265, 22268), (1465, 19228), (1748, 16115), (2090, 13478), (2185, 12892), (2530, 11134), (2930, 9614), (3223, 8740), (4180, 6739), (4370, 6446), (4807, 5860), (5060, 5567)]