28339640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:805

約数の個数: 96

約数和(自身を含む): 78181200

約数和(自身を除く): 49841560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 380, 392, 490, 532, 665, 760, 761, 931, 980, 1064, 1330, 1522, 1862, 1960, 2660, 3044, 3724, 3805, 4655, 5320, 5327, 6088, 7448, 7610, 9310, 10654, 14459, 15220, 18620, 21308, 26635, 28918, 30440, 37240, 37289, 42616, 53270, 57836, 72295, 74578, 101213, 106540, 115672, 144590, 149156, 186445, 202426, 213080, 289180, 298312, 372890, 404852, 506065, 578360, 708491, 745780, 809704, 1012130, 1416982, 1491560, 2024260, 2833964, 3542455, 4048520, 5667928, 7084910, 14169820, 28339640]

約数ペア:

[(1, 28339640), (2, 14169820), (4, 7084910), (5, 5667928), (7, 4048520), (8, 3542455), (10, 2833964), (14, 2024260), (19, 1491560), (20, 1416982), (28, 1012130), (35, 809704), (38, 745780), (40, 708491), (49, 578360), (56, 506065), (70, 404852), (76, 372890), (95, 298312), (98, 289180), (133, 213080), (140, 202426), (152, 186445), (190, 149156), (196, 144590), (245, 115672), (266, 106540), (280, 101213), (380, 74578), (392, 72295), (490, 57836), (532, 53270), (665, 42616), (760, 37289), (761, 37240), (931, 30440), (980, 28918), (1064, 26635), (1330, 21308), (1522, 18620), (1862, 15220), (1960, 14459), (2660, 10654), (3044, 9310), (3724, 7610), (3805, 7448), (4655, 6088), (5320, 5327)]