42381560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{547}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 103572000

約数和(自身を除く): 61190440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 149, 260, 298, 520, 547, 596, 745, 1094, 1192, 1490, 1937, 2188, 2735, 2980, 3874, 4376, 5470, 5960, 7111, 7748, 9685, 10940, 14222, 15496, 19370, 21880, 28444, 35555, 38740, 56888, 71110, 77480, 81503, 142220, 163006, 284440, 326012, 407515, 652024, 815030, 1059539, 1630060, 2119078, 3260120, 4238156, 5297695, 8476312, 10595390, 21190780, 42381560]

約数ペア:

[(1, 42381560), (2, 21190780), (4, 10595390), (5, 8476312), (8, 5297695), (10, 4238156), (13, 3260120), (20, 2119078), (26, 1630060), (40, 1059539), (52, 815030), (65, 652024), (104, 407515), (130, 326012), (149, 284440), (260, 163006), (298, 142220), (520, 81503), (547, 77480), (596, 71110), (745, 56888), (1094, 38740), (1192, 35555), (1490, 28444), (1937, 21880), (2188, 19370), (2735, 15496), (2980, 14222), (3874, 10940), (4376, 9685), (5470, 7748), (5960, 7111)]