28805420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3373}}^1$

素因数の和:3450

約数の個数: 48

約数和(自身を含む): 70287168

約数和(自身を除く): 41481748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 3373, 4270, 6746, 8540, 13492, 16865, 23611, 33730, 47222, 67460, 94444, 118055, 205753, 236110, 411506, 472220, 823012, 1028765, 1440271, 2057530, 2880542, 4115060, 5761084, 7201355, 14402710, 28805420]

約数ペア:

[(1, 28805420), (2, 14402710), (4, 7201355), (5, 5761084), (7, 4115060), (10, 2880542), (14, 2057530), (20, 1440271), (28, 1028765), (35, 823012), (61, 472220), (70, 411506), (122, 236110), (140, 205753), (244, 118055), (305, 94444), (427, 67460), (610, 47222), (854, 33730), (1220, 23611), (1708, 16865), (2135, 13492), (3373, 8540), (4270, 6746)]