291236920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2843}}^1$

素因数の和:3064

約数の個数: 64

約数和(自身を含む): 709521120

約数和(自身を除く): 418284200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 197, 260, 394, 520, 788, 985, 1576, 1970, 2561, 2843, 3940, 5122, 5686, 7880, 10244, 11372, 12805, 14215, 20488, 22744, 25610, 28430, 36959, 51220, 56860, 73918, 102440, 113720, 147836, 184795, 295672, 369590, 560071, 739180, 1120142, 1478360, 2240284, 2800355, 4480568, 5600710, 7280923, 11201420, 14561846, 22402840, 29123692, 36404615, 58247384, 72809230, 145618460, 291236920]

約数ペア:

[(1, 291236920), (2, 145618460), (4, 72809230), (5, 58247384), (8, 36404615), (10, 29123692), (13, 22402840), (20, 14561846), (26, 11201420), (40, 7280923), (52, 5600710), (65, 4480568), (104, 2800355), (130, 2240284), (197, 1478360), (260, 1120142), (394, 739180), (520, 560071), (788, 369590), (985, 295672), (1576, 184795), (1970, 147836), (2561, 113720), (2843, 102440), (3940, 73918), (5122, 56860), (5686, 51220), (7880, 36959), (10244, 28430), (11372, 25610), (12805, 22744), (14215, 20488)]