1345400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{31}}^2$

素因数の和:85

約数の個数: 72

約数和(自身を含む): 3693960

約数和(自身を除く): 2348560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 100, 124, 140, 155, 175, 200, 217, 248, 280, 310, 350, 434, 620, 700, 775, 868, 961, 1085, 1240, 1400, 1550, 1736, 1922, 2170, 3100, 3844, 4340, 4805, 5425, 6200, 6727, 7688, 8680, 9610, 10850, 13454, 19220, 21700, 24025, 26908, 33635, 38440, 43400, 48050, 53816, 67270, 96100, 134540, 168175, 192200, 269080, 336350, 672700, 1345400]

約数ペア:

[(1, 1345400), (2, 672700), (4, 336350), (5, 269080), (7, 192200), (8, 168175), (10, 134540), (14, 96100), (20, 67270), (25, 53816), (28, 48050), (31, 43400), (35, 38440), (40, 33635), (50, 26908), (56, 24025), (62, 21700), (70, 19220), (100, 13454), (124, 10850), (140, 9610), (155, 8680), (175, 7688), (200, 6727), (217, 6200), (248, 5425), (280, 4805), (310, 4340), (350, 3844), (434, 3100), (620, 2170), (700, 1922), (775, 1736), (868, 1550), (961, 1400), (1085, 1240)]