18858385

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 29417472

約数和(自身を除く): 10559087

約数列:

[1, 5, 7, 13, 31, 35, 49, 65, 91, 155, 191, 217, 245, 403, 455, 637, 955, 1085, 1337, 1519, 2015, 2483, 2821, 3185, 5921, 6685, 7595, 9359, 12415, 14105, 17381, 19747, 29605, 41447, 46795, 76973, 86905, 98735, 121667, 207235, 290129, 384865, 538811, 608335, 1450645, 2694055, 3771677, 18858385]

約数ペア:

[(1, 18858385), (5, 3771677), (7, 2694055), (13, 1450645), (31, 608335), (35, 538811), (49, 384865), (65, 290129), (91, 207235), (155, 121667), (191, 98735), (217, 86905), (245, 76973), (403, 46795), (455, 41447), (637, 29605), (955, 19747), (1085, 17381), (1337, 14105), (1519, 12415), (2015, 9359), (2483, 7595), (2821, 6685), (3185, 5921)]