201427980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{258241}}^1$

素因数の和:258266

約数の個数: 48

約数和(自身を含む): 607385184

約数和(自身を除く): 405957204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 258241, 516482, 774723, 1032964, 1291205, 1549446, 2582410, 3098892, 3357133, 3873615, 5164820, 6714266, 7747230, 10071399, 13428532, 15494460, 16785665, 20142798, 33571330, 40285596, 50356995, 67142660, 100713990, 201427980]

約数ペア:

[(1, 201427980), (2, 100713990), (3, 67142660), (4, 50356995), (5, 40285596), (6, 33571330), (10, 20142798), (12, 16785665), (13, 15494460), (15, 13428532), (20, 10071399), (26, 7747230), (30, 6714266), (39, 5164820), (52, 3873615), (60, 3357133), (65, 3098892), (78, 2582410), (130, 1549446), (156, 1291205), (195, 1032964), (260, 774723), (390, 516482), (780, 258241)]