423640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:124

約数の個数: 64

約数和(自身を含む): 1166400

約数和(自身を除く): 742760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 89, 119, 136, 140, 170, 178, 238, 280, 340, 356, 445, 476, 595, 623, 680, 712, 890, 952, 1190, 1246, 1513, 1780, 2380, 2492, 3026, 3115, 3560, 4760, 4984, 6052, 6230, 7565, 10591, 12104, 12460, 15130, 21182, 24920, 30260, 42364, 52955, 60520, 84728, 105910, 211820, 423640]

約数ペア:

[(1, 423640), (2, 211820), (4, 105910), (5, 84728), (7, 60520), (8, 52955), (10, 42364), (14, 30260), (17, 24920), (20, 21182), (28, 15130), (34, 12460), (35, 12104), (40, 10591), (56, 7565), (68, 6230), (70, 6052), (85, 4984), (89, 4760), (119, 3560), (136, 3115), (140, 3026), (170, 2492), (178, 2380), (238, 1780), (280, 1513), (340, 1246), (356, 1190), (445, 952), (476, 890), (595, 712), (623, 680)]