20719290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 51601536

約数和(自身を除く): 30882246

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 83, 106, 157, 159, 166, 249, 265, 314, 318, 415, 471, 498, 530, 785, 795, 830, 942, 1245, 1570, 1590, 2355, 2490, 4399, 4710, 8321, 8798, 13031, 13197, 16642, 21995, 24963, 26062, 26394, 39093, 41605, 43990, 49926, 65155, 65985, 78186, 83210, 124815, 130310, 131970, 195465, 249630, 390930, 690643, 1381286, 2071929, 3453215, 4143858, 6906430, 10359645, 20719290]

約数ペア:

[(1, 20719290), (2, 10359645), (3, 6906430), (5, 4143858), (6, 3453215), (10, 2071929), (15, 1381286), (30, 690643), (53, 390930), (83, 249630), (106, 195465), (157, 131970), (159, 130310), (166, 124815), (249, 83210), (265, 78186), (314, 65985), (318, 65155), (415, 49926), (471, 43990), (498, 41605), (530, 39093), (785, 26394), (795, 26062), (830, 24963), (942, 21995), (1245, 16642), (1570, 13197), (1590, 13031), (2355, 8798), (2490, 8321), (4399, 4710)]