20228988

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 54190080

約数和(自身を除く): 33961092

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 47, 52, 62, 78, 89, 93, 94, 124, 141, 156, 178, 186, 188, 267, 282, 356, 372, 403, 534, 564, 611, 806, 1068, 1157, 1209, 1222, 1457, 1612, 1833, 2314, 2418, 2444, 2759, 2914, 3471, 3666, 4183, 4371, 4628, 4836, 5518, 5828, 6942, 7332, 8277, 8366, 8742, 11036, 12549, 13884, 16554, 16732, 17484, 18941, 25098, 33108, 35867, 37882, 50196, 54379, 56823, 71734, 75764, 107601, 108758, 113646, 129673, 143468, 163137, 215202, 217516, 227292, 259346, 326274, 389019, 430404, 518692, 652548, 778038, 1556076, 1685749, 3371498, 5057247, 6742996, 10114494, 20228988]

約数ペア:

[(1, 20228988), (2, 10114494), (3, 6742996), (4, 5057247), (6, 3371498), (12, 1685749), (13, 1556076), (26, 778038), (31, 652548), (39, 518692), (47, 430404), (52, 389019), (62, 326274), (78, 259346), (89, 227292), (93, 217516), (94, 215202), (124, 163137), (141, 143468), (156, 129673), (178, 113646), (186, 108758), (188, 107601), (267, 75764), (282, 71734), (356, 56823), (372, 54379), (403, 50196), (534, 37882), (564, 35867), (611, 33108), (806, 25098), (1068, 18941), (1157, 17484), (1209, 16732), (1222, 16554), (1457, 13884), (1612, 12549), (1833, 11036), (2314, 8742), (2418, 8366), (2444, 8277), (2759, 7332), (2914, 6942), (3471, 5828), (3666, 5518), (4183, 4836), (4371, 4628)]