19900206

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{569}}^1$

素因数の和:673

約数の個数: 48

約数和(自身を含む): 45349200

約数和(自身を除く): 25448994

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 67, 87, 134, 174, 201, 261, 402, 522, 569, 603, 1138, 1206, 1707, 1943, 3414, 3886, 5121, 5829, 10242, 11658, 16501, 17487, 33002, 34974, 38123, 49503, 76246, 99006, 114369, 148509, 228738, 297018, 343107, 686214, 1105567, 2211134, 3316701, 6633402, 9950103, 19900206]

約数ペア:

[(1, 19900206), (2, 9950103), (3, 6633402), (6, 3316701), (9, 2211134), (18, 1105567), (29, 686214), (58, 343107), (67, 297018), (87, 228738), (134, 148509), (174, 114369), (201, 99006), (261, 76246), (402, 49503), (522, 38123), (569, 34974), (603, 33002), (1138, 17487), (1206, 16501), (1707, 11658), (1943, 10242), (3414, 5829), (3886, 5121)]