28137720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1061}}^1$

素因数の和:1105

約数の個数: 128

約数和(自身を含む): 96344640

約数和(自身を除く): 68206920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 34, 39, 40, 51, 52, 60, 65, 68, 78, 85, 102, 104, 120, 130, 136, 156, 170, 195, 204, 221, 255, 260, 312, 340, 390, 408, 442, 510, 520, 663, 680, 780, 884, 1020, 1061, 1105, 1326, 1560, 1768, 2040, 2122, 2210, 2652, 3183, 3315, 4244, 4420, 5304, 5305, 6366, 6630, 8488, 8840, 10610, 12732, 13260, 13793, 15915, 18037, 21220, 25464, 26520, 27586, 31830, 36074, 41379, 42440, 54111, 55172, 63660, 68965, 72148, 82758, 90185, 108222, 110344, 127320, 137930, 144296, 165516, 180370, 206895, 216444, 234481, 270555, 275860, 331032, 360740, 413790, 432888, 468962, 541110, 551720, 703443, 721480, 827580, 937924, 1082220, 1172405, 1406886, 1655160, 1875848, 2164440, 2344810, 2813772, 3517215, 4689620, 5627544, 7034430, 9379240, 14068860, 28137720]

約数ペア:

[(1, 28137720), (2, 14068860), (3, 9379240), (4, 7034430), (5, 5627544), (6, 4689620), (8, 3517215), (10, 2813772), (12, 2344810), (13, 2164440), (15, 1875848), (17, 1655160), (20, 1406886), (24, 1172405), (26, 1082220), (30, 937924), (34, 827580), (39, 721480), (40, 703443), (51, 551720), (52, 541110), (60, 468962), (65, 432888), (68, 413790), (78, 360740), (85, 331032), (102, 275860), (104, 270555), (120, 234481), (130, 216444), (136, 206895), (156, 180370), (170, 165516), (195, 144296), (204, 137930), (221, 127320), (255, 110344), (260, 108222), (312, 90185), (340, 82758), (390, 72148), (408, 68965), (442, 63660), (510, 55172), (520, 54111), (663, 42440), (680, 41379), (780, 36074), (884, 31830), (1020, 27586), (1061, 26520), (1105, 25464), (1326, 21220), (1560, 18037), (1768, 15915), (2040, 13793), (2122, 13260), (2210, 12732), (2652, 10610), (3183, 8840), (3315, 8488), (4244, 6630), (4420, 6366), (5304, 5305)]