1221891720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{1454633}}^1$

素因数の和:1454654

約数の個数: 64

約数和(自身を含む): 4189345920

約数和(自身を除く): 2967454200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 1454633, 2909266, 4363899, 5818532, 7273165, 8727798, 10182431, 11637064, 14546330, 17455596, 20364862, 21819495, 29092660, 30547293, 34911192, 40729724, 43638990, 50912155, 58185320, 61094586, 81459448, 87277980, 101824310, 122189172, 152736465, 174555960, 203648620, 244378344, 305472930, 407297240, 610945860, 1221891720]

約数ペア:

[(1, 1221891720), (2, 610945860), (3, 407297240), (4, 305472930), (5, 244378344), (6, 203648620), (7, 174555960), (8, 152736465), (10, 122189172), (12, 101824310), (14, 87277980), (15, 81459448), (20, 61094586), (21, 58185320), (24, 50912155), (28, 43638990), (30, 40729724), (35, 34911192), (40, 30547293), (42, 29092660), (56, 21819495), (60, 20364862), (70, 17455596), (84, 14546330), (105, 11637064), (120, 10182431), (140, 8727798), (168, 7273165), (210, 5818532), (280, 4363899), (420, 2909266), (840, 1454633)]