219558220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{1427}}^1$

素因数の和:1607

約数の個数: 72

約数和(自身を含む): 540143856

約数和(自身を除く): 320585636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 157, 196, 245, 314, 490, 628, 785, 980, 1099, 1427, 1570, 2198, 2854, 3140, 4396, 5495, 5708, 7135, 7693, 9989, 10990, 14270, 15386, 19978, 21980, 28540, 30772, 38465, 39956, 49945, 69923, 76930, 99890, 139846, 153860, 199780, 224039, 279692, 349615, 448078, 699230, 896156, 1120195, 1398460, 1568273, 2240390, 3136546, 4480780, 6273092, 7841365, 10977911, 15682730, 21955822, 31365460, 43911644, 54889555, 109779110, 219558220]

約数ペア:

[(1, 219558220), (2, 109779110), (4, 54889555), (5, 43911644), (7, 31365460), (10, 21955822), (14, 15682730), (20, 10977911), (28, 7841365), (35, 6273092), (49, 4480780), (70, 3136546), (98, 2240390), (140, 1568273), (157, 1398460), (196, 1120195), (245, 896156), (314, 699230), (490, 448078), (628, 349615), (785, 279692), (980, 224039), (1099, 199780), (1427, 153860), (1570, 139846), (2198, 99890), (2854, 76930), (3140, 69923), (4396, 49945), (5495, 39956), (5708, 38465), (7135, 30772), (7693, 28540), (9989, 21980), (10990, 19978), (14270, 15386)]