171644980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{1297}}^1$

素因数の和:1828

約数の個数: 48

約数和(自身を含む): 389244240

約数和(自身を除く): 217599260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 509, 1018, 1297, 2036, 2545, 2594, 5090, 5188, 6485, 6617, 10180, 12970, 13234, 16861, 25940, 26468, 33085, 33722, 66170, 67444, 84305, 132340, 168610, 337220, 660173, 1320346, 2640692, 3300865, 6601730, 8582249, 13203460, 17164498, 34328996, 42911245, 85822490, 171644980]

約数ペア:

[(1, 171644980), (2, 85822490), (4, 42911245), (5, 34328996), (10, 17164498), (13, 13203460), (20, 8582249), (26, 6601730), (52, 3300865), (65, 2640692), (130, 1320346), (260, 660173), (509, 337220), (1018, 168610), (1297, 132340), (2036, 84305), (2545, 67444), (2594, 66170), (5090, 33722), (5188, 33085), (6485, 26468), (6617, 25940), (10180, 16861), (12970, 13234)]