640386

素因数分解:

$2^1\times 3^4\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:140

約数の個数: 40

約数和(自身を含む): 1481040

約数和(自身を除く): 840654

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 59, 67, 81, 118, 134, 162, 177, 201, 354, 402, 531, 603, 1062, 1206, 1593, 1809, 3186, 3618, 3953, 4779, 5427, 7906, 9558, 10854, 11859, 23718, 35577, 71154, 106731, 213462, 320193, 640386]

約数ペア:

[(1, 640386), (2, 320193), (3, 213462), (6, 106731), (9, 71154), (18, 35577), (27, 23718), (54, 11859), (59, 10854), (67, 9558), (81, 7906), (118, 5427), (134, 4779), (162, 3953), (177, 3618), (201, 3186), (354, 1809), (402, 1593), (531, 1206), (603, 1062)]