1921780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 4912488

約数和(自身を除く): 2990708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 53, 70, 74, 98, 106, 140, 148, 185, 196, 212, 245, 259, 265, 370, 371, 490, 518, 530, 740, 742, 980, 1036, 1060, 1295, 1484, 1813, 1855, 1961, 2590, 2597, 3626, 3710, 3922, 5180, 5194, 7252, 7420, 7844, 9065, 9805, 10388, 12985, 13727, 18130, 19610, 25970, 27454, 36260, 39220, 51940, 54908, 68635, 96089, 137270, 192178, 274540, 384356, 480445, 960890, 1921780]

約数ペア:

[(1, 1921780), (2, 960890), (4, 480445), (5, 384356), (7, 274540), (10, 192178), (14, 137270), (20, 96089), (28, 68635), (35, 54908), (37, 51940), (49, 39220), (53, 36260), (70, 27454), (74, 25970), (98, 19610), (106, 18130), (140, 13727), (148, 12985), (185, 10388), (196, 9805), (212, 9065), (245, 7844), (259, 7420), (265, 7252), (370, 5194), (371, 5180), (490, 3922), (518, 3710), (530, 3626), (740, 2597), (742, 2590), (980, 1961), (1036, 1855), (1060, 1813), (1295, 1484)]