28115640

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{3719}}^1$

素因数の和:3746

約数の個数: 128

約数和(自身を含む): 107136000

約数和(自身を除く): 79020360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3719, 3780, 7438, 7560, 11157, 14876, 18595, 22314, 26033, 29752, 33471, 37190, 44628, 52066, 55785, 66942, 74380, 78099, 89256, 100413, 104132, 111570, 130165, 133884, 148760, 156198, 167355, 200826, 208264, 223140, 234297, 260330, 267768, 312396, 334710, 390495, 401652, 446280, 468594, 502065, 520660, 624792, 669420, 702891, 780990, 803304, 937188, 1004130, 1041320, 1171485, 1338840, 1405782, 1561980, 1874376, 2008260, 2342970, 2811564, 3123960, 3514455, 4016520, 4685940, 5623128, 7028910, 9371880, 14057820, 28115640]

約数ペア:

[(1, 28115640), (2, 14057820), (3, 9371880), (4, 7028910), (5, 5623128), (6, 4685940), (7, 4016520), (8, 3514455), (9, 3123960), (10, 2811564), (12, 2342970), (14, 2008260), (15, 1874376), (18, 1561980), (20, 1405782), (21, 1338840), (24, 1171485), (27, 1041320), (28, 1004130), (30, 937188), (35, 803304), (36, 780990), (40, 702891), (42, 669420), (45, 624792), (54, 520660), (56, 502065), (60, 468594), (63, 446280), (70, 401652), (72, 390495), (84, 334710), (90, 312396), (105, 267768), (108, 260330), (120, 234297), (126, 223140), (135, 208264), (140, 200826), (168, 167355), (180, 156198), (189, 148760), (210, 133884), (216, 130165), (252, 111570), (270, 104132), (280, 100413), (315, 89256), (360, 78099), (378, 74380), (420, 66942), (504, 55785), (540, 52066), (630, 44628), (756, 37190), (840, 33471), (945, 29752), (1080, 26033), (1260, 22314), (1512, 18595), (1890, 14876), (2520, 11157), (3719, 7560), (3780, 7438)]