391022820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3389}}^1$

素因数の和:4045

約数の個数: 72

約数和(自身を含む): 1188303480

約数和(自身を除く): 797280660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 641, 1282, 1923, 2564, 3205, 3389, 3846, 5769, 6410, 6778, 7692, 9615, 10167, 11538, 12820, 13556, 16945, 19230, 20334, 23076, 28845, 30501, 33890, 38460, 40668, 50835, 57690, 61002, 67780, 101670, 115380, 122004, 152505, 203340, 305010, 610020, 2172349, 4344698, 6517047, 8689396, 10861745, 13034094, 19551141, 21723490, 26068188, 32585235, 39102282, 43446980, 65170470, 78204564, 97755705, 130340940, 195511410, 391022820]

約数ペア:

[(1, 391022820), (2, 195511410), (3, 130340940), (4, 97755705), (5, 78204564), (6, 65170470), (9, 43446980), (10, 39102282), (12, 32585235), (15, 26068188), (18, 21723490), (20, 19551141), (30, 13034094), (36, 10861745), (45, 8689396), (60, 6517047), (90, 4344698), (180, 2172349), (641, 610020), (1282, 305010), (1923, 203340), (2564, 152505), (3205, 122004), (3389, 115380), (3846, 101670), (5769, 67780), (6410, 61002), (6778, 57690), (7692, 50835), (9615, 40668), (10167, 38460), (11538, 33890), (12820, 30501), (13556, 28845), (16945, 23076), (19230, 20334)]