52487500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:78

約数の個数: 144

約数和(自身を含む): 137803680

約数和(自身を除く): 85316180

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 25, 26, 34, 38, 50, 52, 65, 68, 76, 85, 95, 100, 125, 130, 170, 190, 221, 247, 250, 260, 323, 325, 340, 380, 425, 442, 475, 494, 500, 625, 646, 650, 850, 884, 950, 988, 1105, 1235, 1250, 1292, 1300, 1615, 1625, 1700, 1900, 2125, 2210, 2375, 2470, 2500, 3125, 3230, 3250, 4199, 4250, 4420, 4750, 4940, 5525, 6175, 6250, 6460, 6500, 8075, 8125, 8398, 8500, 9500, 10625, 11050, 11875, 12350, 12500, 16150, 16250, 16796, 20995, 21250, 22100, 23750, 24700, 27625, 30875, 32300, 32500, 40375, 40625, 41990, 42500, 47500, 53125, 55250, 59375, 61750, 80750, 81250, 83980, 104975, 106250, 110500, 118750, 123500, 138125, 154375, 161500, 162500, 201875, 209950, 212500, 237500, 276250, 308750, 403750, 419900, 524875, 552500, 617500, 690625, 771875, 807500, 1009375, 1049750, 1381250, 1543750, 2018750, 2099500, 2624375, 2762500, 3087500, 4037500, 5248750, 10497500, 13121875, 26243750, 52487500]

約数ペア:

[(1, 52487500), (2, 26243750), (4, 13121875), (5, 10497500), (10, 5248750), (13, 4037500), (17, 3087500), (19, 2762500), (20, 2624375), (25, 2099500), (26, 2018750), (34, 1543750), (38, 1381250), (50, 1049750), (52, 1009375), (65, 807500), (68, 771875), (76, 690625), (85, 617500), (95, 552500), (100, 524875), (125, 419900), (130, 403750), (170, 308750), (190, 276250), (221, 237500), (247, 212500), (250, 209950), (260, 201875), (323, 162500), (325, 161500), (340, 154375), (380, 138125), (425, 123500), (442, 118750), (475, 110500), (494, 106250), (500, 104975), (625, 83980), (646, 81250), (650, 80750), (850, 61750), (884, 59375), (950, 55250), (988, 53125), (1105, 47500), (1235, 42500), (1250, 41990), (1292, 40625), (1300, 40375), (1615, 32500), (1625, 32300), (1700, 30875), (1900, 27625), (2125, 24700), (2210, 23750), (2375, 22100), (2470, 21250), (2500, 20995), (3125, 16796), (3230, 16250), (3250, 16150), (4199, 12500), (4250, 12350), (4420, 11875), (4750, 11050), (4940, 10625), (5525, 9500), (6175, 8500), (6250, 8398), (6460, 8125), (6500, 8075)]