18538000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 160

約数和(自身を含む): 51996672

約数和(自身を除く): 33458672

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 25, 26, 31, 40, 46, 50, 52, 62, 65, 80, 92, 100, 104, 115, 124, 125, 130, 155, 184, 200, 208, 230, 248, 250, 260, 299, 310, 325, 368, 400, 403, 460, 496, 500, 520, 575, 598, 620, 650, 713, 775, 806, 920, 1000, 1040, 1150, 1196, 1240, 1300, 1426, 1495, 1550, 1612, 1625, 1840, 2000, 2015, 2300, 2392, 2480, 2600, 2852, 2875, 2990, 3100, 3224, 3250, 3565, 3875, 4030, 4600, 4784, 5200, 5704, 5750, 5980, 6200, 6448, 6500, 7130, 7475, 7750, 8060, 9200, 9269, 10075, 11408, 11500, 11960, 12400, 13000, 14260, 14950, 15500, 16120, 17825, 18538, 20150, 23000, 23920, 26000, 28520, 29900, 31000, 32240, 35650, 37076, 37375, 40300, 46000, 46345, 50375, 57040, 59800, 62000, 71300, 74152, 74750, 80600, 89125, 92690, 100750, 119600, 142600, 148304, 149500, 161200, 178250, 185380, 201500, 231725, 285200, 299000, 356500, 370760, 403000, 463450, 598000, 713000, 741520, 806000, 926900, 1158625, 1426000, 1853800, 2317250, 3707600, 4634500, 9269000, 18538000]

約数ペア:

[(1, 18538000), (2, 9269000), (4, 4634500), (5, 3707600), (8, 2317250), (10, 1853800), (13, 1426000), (16, 1158625), (20, 926900), (23, 806000), (25, 741520), (26, 713000), (31, 598000), (40, 463450), (46, 403000), (50, 370760), (52, 356500), (62, 299000), (65, 285200), (80, 231725), (92, 201500), (100, 185380), (104, 178250), (115, 161200), (124, 149500), (125, 148304), (130, 142600), (155, 119600), (184, 100750), (200, 92690), (208, 89125), (230, 80600), (248, 74750), (250, 74152), (260, 71300), (299, 62000), (310, 59800), (325, 57040), (368, 50375), (400, 46345), (403, 46000), (460, 40300), (496, 37375), (500, 37076), (520, 35650), (575, 32240), (598, 31000), (620, 29900), (650, 28520), (713, 26000), (775, 23920), (806, 23000), (920, 20150), (1000, 18538), (1040, 17825), (1150, 16120), (1196, 15500), (1240, 14950), (1300, 14260), (1426, 13000), (1495, 12400), (1550, 11960), (1612, 11500), (1625, 11408), (1840, 10075), (2000, 9269), (2015, 9200), (2300, 8060), (2392, 7750), (2480, 7475), (2600, 7130), (2852, 6500), (2875, 6448), (2990, 6200), (3100, 5980), (3224, 5750), (3250, 5704), (3565, 5200), (3875, 4784), (4030, 4600)]