81557580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{104561}}^1$

素因数の和:104586

約数の個数: 48

約数和(自身を含む): 245929824

約数和(自身を除く): 164372244

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 104561, 209122, 313683, 418244, 522805, 627366, 1045610, 1254732, 1359293, 1568415, 2091220, 2718586, 3136830, 4077879, 5437172, 6273660, 6796465, 8155758, 13592930, 16311516, 20389395, 27185860, 40778790, 81557580]

約数ペア:

[(1, 81557580), (2, 40778790), (3, 27185860), (4, 20389395), (5, 16311516), (6, 13592930), (10, 8155758), (12, 6796465), (13, 6273660), (15, 5437172), (20, 4077879), (26, 3136830), (30, 2718586), (39, 2091220), (52, 1568415), (60, 1359293), (65, 1254732), (78, 1045610), (130, 627366), (156, 522805), (195, 418244), (260, 313683), (390, 209122), (780, 104561)]