2172660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{739}}^1$

素因数の和:765

約数の個数: 72

約数和(自身を含む): 7086240

約数和(自身を除く): 4913580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 739, 980, 1470, 1478, 2217, 2940, 2956, 3695, 4434, 5173, 7390, 8868, 10346, 11085, 14780, 15519, 20692, 22170, 25865, 31038, 36211, 44340, 51730, 62076, 72422, 77595, 103460, 108633, 144844, 155190, 181055, 217266, 310380, 362110, 434532, 543165, 724220, 1086330, 2172660]

約数ペア:

[(1, 2172660), (2, 1086330), (3, 724220), (4, 543165), (5, 434532), (6, 362110), (7, 310380), (10, 217266), (12, 181055), (14, 155190), (15, 144844), (20, 108633), (21, 103460), (28, 77595), (30, 72422), (35, 62076), (42, 51730), (49, 44340), (60, 36211), (70, 31038), (84, 25865), (98, 22170), (105, 20692), (140, 15519), (147, 14780), (196, 11085), (210, 10346), (245, 8868), (294, 7390), (420, 5173), (490, 4434), (588, 3695), (735, 2956), (739, 2940), (980, 2217), (1470, 1478)]