291565720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{1657}}^1$

素因数の和:1804

約数の個数: 64

約数和(自身を含む): 676861920

約数和(自身を除く): 385296200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 83, 106, 166, 212, 265, 332, 415, 424, 530, 664, 830, 1060, 1657, 1660, 2120, 3314, 3320, 4399, 6628, 8285, 8798, 13256, 16570, 17596, 21995, 33140, 35192, 43990, 66280, 87821, 87980, 137531, 175642, 175960, 275062, 351284, 439105, 550124, 687655, 702568, 878210, 1100248, 1375310, 1756420, 2750620, 3512840, 5501240, 7289143, 14578286, 29156572, 36445715, 58313144, 72891430, 145782860, 291565720]

約数ペア:

[(1, 291565720), (2, 145782860), (4, 72891430), (5, 58313144), (8, 36445715), (10, 29156572), (20, 14578286), (40, 7289143), (53, 5501240), (83, 3512840), (106, 2750620), (166, 1756420), (212, 1375310), (265, 1100248), (332, 878210), (415, 702568), (424, 687655), (530, 550124), (664, 439105), (830, 351284), (1060, 275062), (1657, 175960), (1660, 175642), (2120, 137531), (3314, 87980), (3320, 87821), (4399, 66280), (6628, 43990), (8285, 35192), (8798, 33140), (13256, 21995), (16570, 17596)]