81392010

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20399}}^1$

素因数の和:20435

約数の個数: 64

約数和(自身を含む): 235008000

約数和(自身を除く): 153615990

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 20399, 40798, 61197, 101995, 122394, 142793, 203990, 285586, 305985, 387581, 428379, 611970, 713965, 775162, 856758, 1162743, 1427930, 1937905, 2141895, 2325486, 2713067, 3875810, 4283790, 5426134, 5813715, 8139201, 11627430, 13565335, 16278402, 27130670, 40696005, 81392010]

約数ペア:

[(1, 81392010), (2, 40696005), (3, 27130670), (5, 16278402), (6, 13565335), (7, 11627430), (10, 8139201), (14, 5813715), (15, 5426134), (19, 4283790), (21, 3875810), (30, 2713067), (35, 2325486), (38, 2141895), (42, 1937905), (57, 1427930), (70, 1162743), (95, 856758), (105, 775162), (114, 713965), (133, 611970), (190, 428379), (210, 387581), (266, 305985), (285, 285586), (399, 203990), (570, 142793), (665, 122394), (798, 101995), (1330, 61197), (1995, 40798), (3990, 20399)]