18031000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:126

約数の個数: 128

約数和(自身を含む): 48484800

約数和(自身を除く): 30453800

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 25, 26, 38, 40, 50, 52, 65, 73, 76, 95, 100, 104, 125, 130, 146, 152, 190, 200, 247, 250, 260, 292, 325, 365, 380, 475, 494, 500, 520, 584, 650, 730, 760, 949, 950, 988, 1000, 1235, 1300, 1387, 1460, 1625, 1825, 1898, 1900, 1976, 2375, 2470, 2600, 2774, 2920, 3250, 3650, 3796, 3800, 4745, 4750, 4940, 5548, 6175, 6500, 6935, 7300, 7592, 9125, 9490, 9500, 9880, 11096, 12350, 13000, 13870, 14600, 18031, 18250, 18980, 19000, 23725, 24700, 27740, 30875, 34675, 36062, 36500, 37960, 47450, 49400, 55480, 61750, 69350, 72124, 73000, 90155, 94900, 118625, 123500, 138700, 144248, 173375, 180310, 189800, 237250, 247000, 277400, 346750, 360620, 450775, 474500, 693500, 721240, 901550, 949000, 1387000, 1803100, 2253875, 3606200, 4507750, 9015500, 18031000]

約数ペア:

[(1, 18031000), (2, 9015500), (4, 4507750), (5, 3606200), (8, 2253875), (10, 1803100), (13, 1387000), (19, 949000), (20, 901550), (25, 721240), (26, 693500), (38, 474500), (40, 450775), (50, 360620), (52, 346750), (65, 277400), (73, 247000), (76, 237250), (95, 189800), (100, 180310), (104, 173375), (125, 144248), (130, 138700), (146, 123500), (152, 118625), (190, 94900), (200, 90155), (247, 73000), (250, 72124), (260, 69350), (292, 61750), (325, 55480), (365, 49400), (380, 47450), (475, 37960), (494, 36500), (500, 36062), (520, 34675), (584, 30875), (650, 27740), (730, 24700), (760, 23725), (949, 19000), (950, 18980), (988, 18250), (1000, 18031), (1235, 14600), (1300, 13870), (1387, 13000), (1460, 12350), (1625, 11096), (1825, 9880), (1898, 9500), (1900, 9490), (1976, 9125), (2375, 7592), (2470, 7300), (2600, 6935), (2774, 6500), (2920, 6175), (3250, 5548), (3650, 4940), (3796, 4750), (3800, 4745)]