28721190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:477

約数の個数: 64

約数和(自身を含む): 72161280

約数和(自身を除く): 43440090

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 89, 93, 155, 178, 186, 267, 310, 347, 445, 465, 534, 694, 890, 930, 1041, 1335, 1735, 2082, 2670, 2759, 3470, 5205, 5518, 8277, 10410, 10757, 13795, 16554, 21514, 27590, 30883, 32271, 41385, 53785, 61766, 64542, 82770, 92649, 107570, 154415, 161355, 185298, 308830, 322710, 463245, 926490, 957373, 1914746, 2872119, 4786865, 5744238, 9573730, 14360595, 28721190]

約数ペア:

[(1, 28721190), (2, 14360595), (3, 9573730), (5, 5744238), (6, 4786865), (10, 2872119), (15, 1914746), (30, 957373), (31, 926490), (62, 463245), (89, 322710), (93, 308830), (155, 185298), (178, 161355), (186, 154415), (267, 107570), (310, 92649), (347, 82770), (445, 64542), (465, 61766), (534, 53785), (694, 41385), (890, 32271), (930, 30883), (1041, 27590), (1335, 21514), (1735, 16554), (2082, 13795), (2670, 10757), (2759, 10410), (3470, 8277), (5205, 5518)]