27990420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:645

約数の個数: 96

約数和(自身を含む): 84564480

約数和(自身を除く): 56574060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 43, 57, 60, 76, 86, 95, 114, 129, 172, 190, 215, 228, 258, 285, 380, 430, 516, 570, 571, 645, 817, 860, 1140, 1142, 1290, 1634, 1713, 2284, 2451, 2580, 2855, 3268, 3426, 4085, 4902, 5710, 6852, 8170, 8565, 9804, 10849, 11420, 12255, 16340, 17130, 21698, 24510, 24553, 32547, 34260, 43396, 49020, 49106, 54245, 65094, 73659, 98212, 108490, 122765, 130188, 147318, 162735, 216980, 245530, 294636, 325470, 368295, 466507, 491060, 650940, 736590, 933014, 1399521, 1473180, 1866028, 2332535, 2799042, 4665070, 5598084, 6997605, 9330140, 13995210, 27990420]

約数ペア:

[(1, 27990420), (2, 13995210), (3, 9330140), (4, 6997605), (5, 5598084), (6, 4665070), (10, 2799042), (12, 2332535), (15, 1866028), (19, 1473180), (20, 1399521), (30, 933014), (38, 736590), (43, 650940), (57, 491060), (60, 466507), (76, 368295), (86, 325470), (95, 294636), (114, 245530), (129, 216980), (172, 162735), (190, 147318), (215, 130188), (228, 122765), (258, 108490), (285, 98212), (380, 73659), (430, 65094), (516, 54245), (570, 49106), (571, 49020), (645, 43396), (817, 34260), (860, 32547), (1140, 24553), (1142, 24510), (1290, 21698), (1634, 17130), (1713, 16340), (2284, 12255), (2451, 11420), (2580, 10849), (2855, 9804), (3268, 8565), (3426, 8170), (4085, 6852), (4902, 5710)]