78131800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{709}}^1$

素因数の和:773

約数の個数: 96

約数和(自身を含む): 198090000

約数和(自身を除く): 119958200

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 29, 38, 40, 50, 58, 76, 95, 100, 116, 145, 152, 190, 200, 232, 290, 380, 475, 551, 580, 709, 725, 760, 950, 1102, 1160, 1418, 1450, 1900, 2204, 2755, 2836, 2900, 3545, 3800, 4408, 5510, 5672, 5800, 7090, 11020, 13471, 13775, 14180, 17725, 20561, 22040, 26942, 27550, 28360, 35450, 41122, 53884, 55100, 67355, 70900, 82244, 102805, 107768, 110200, 134710, 141800, 164488, 205610, 269420, 336775, 390659, 411220, 514025, 538840, 673550, 781318, 822440, 1028050, 1347100, 1562636, 1953295, 2056100, 2694200, 3125272, 3906590, 4112200, 7813180, 9766475, 15626360, 19532950, 39065900, 78131800]

約数ペア:

[(1, 78131800), (2, 39065900), (4, 19532950), (5, 15626360), (8, 9766475), (10, 7813180), (19, 4112200), (20, 3906590), (25, 3125272), (29, 2694200), (38, 2056100), (40, 1953295), (50, 1562636), (58, 1347100), (76, 1028050), (95, 822440), (100, 781318), (116, 673550), (145, 538840), (152, 514025), (190, 411220), (200, 390659), (232, 336775), (290, 269420), (380, 205610), (475, 164488), (551, 141800), (580, 134710), (709, 110200), (725, 107768), (760, 102805), (950, 82244), (1102, 70900), (1160, 67355), (1418, 55100), (1450, 53884), (1900, 41122), (2204, 35450), (2755, 28360), (2836, 27550), (2900, 26942), (3545, 22040), (3800, 20561), (4408, 17725), (5510, 14180), (5672, 13775), (5800, 13471), (7090, 11020)]