161911980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{683}}^1$

素因数の和:1140

約数の個数: 96

約数和(自身を含む): 505612800

約数和(自身を除く): 343700820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 439, 540, 683, 878, 1317, 1366, 1756, 2049, 2195, 2634, 2732, 3415, 3951, 4098, 4390, 5268, 6147, 6585, 6830, 7902, 8196, 8780, 10245, 11853, 12294, 13170, 13660, 15804, 18441, 19755, 20490, 23706, 24588, 26340, 30735, 36882, 39510, 40980, 47412, 59265, 61470, 73764, 79020, 92205, 118530, 122940, 184410, 237060, 299837, 368820, 599674, 899511, 1199348, 1499185, 1799022, 2698533, 2998370, 3598044, 4497555, 5397066, 5996740, 8095599, 8995110, 10794132, 13492665, 16191198, 17990220, 26985330, 32382396, 40477995, 53970660, 80955990, 161911980]

約数ペア:

[(1, 161911980), (2, 80955990), (3, 53970660), (4, 40477995), (5, 32382396), (6, 26985330), (9, 17990220), (10, 16191198), (12, 13492665), (15, 10794132), (18, 8995110), (20, 8095599), (27, 5996740), (30, 5397066), (36, 4497555), (45, 3598044), (54, 2998370), (60, 2698533), (90, 1799022), (108, 1499185), (135, 1199348), (180, 899511), (270, 599674), (439, 368820), (540, 299837), (683, 237060), (878, 184410), (1317, 122940), (1366, 118530), (1756, 92205), (2049, 79020), (2195, 73764), (2634, 61470), (2732, 59265), (3415, 47412), (3951, 40980), (4098, 39510), (4390, 36882), (5268, 30735), (6147, 26340), (6585, 24588), (6830, 23706), (7902, 20490), (8196, 19755), (8780, 18441), (10245, 15804), (11853, 13660), (12294, 13170)]