179463940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^2\times {\mathrm{211}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 404526528

約数和(自身を除く): 225062588

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 211, 215, 230, 422, 430, 460, 844, 860, 989, 1055, 1849, 1978, 2110, 3698, 3956, 4220, 4853, 4945, 7396, 9073, 9245, 9706, 9890, 18146, 18490, 19412, 19780, 24265, 36292, 36980, 42527, 45365, 48530, 85054, 90730, 97060, 170108, 181460, 208679, 212635, 390139, 417358, 425270, 780278, 834716, 850540, 1043395, 1560556, 1950695, 2086790, 3901390, 4173580, 7802780, 8973197, 17946394, 35892788, 44865985, 89731970, 179463940]

約数ペア:

[(1, 179463940), (2, 89731970), (4, 44865985), (5, 35892788), (10, 17946394), (20, 8973197), (23, 7802780), (43, 4173580), (46, 3901390), (86, 2086790), (92, 1950695), (115, 1560556), (172, 1043395), (211, 850540), (215, 834716), (230, 780278), (422, 425270), (430, 417358), (460, 390139), (844, 212635), (860, 208679), (989, 181460), (1055, 170108), (1849, 97060), (1978, 90730), (2110, 85054), (3698, 48530), (3956, 45365), (4220, 42527), (4853, 36980), (4945, 36292), (7396, 24265), (9073, 19780), (9245, 19412), (9706, 18490), (9890, 18146)]