28507980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1471}}^1$

素因数の和:1519

約数の個数: 96

約数和(自身を含む): 89026560

約数和(自身を除く): 60518580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 30, 34, 38, 51, 57, 60, 68, 76, 85, 95, 102, 114, 170, 190, 204, 228, 255, 285, 323, 340, 380, 510, 570, 646, 969, 1020, 1140, 1292, 1471, 1615, 1938, 2942, 3230, 3876, 4413, 4845, 5884, 6460, 7355, 8826, 9690, 14710, 17652, 19380, 22065, 25007, 27949, 29420, 44130, 50014, 55898, 75021, 83847, 88260, 100028, 111796, 125035, 139745, 150042, 167694, 250070, 279490, 300084, 335388, 375105, 419235, 475133, 500140, 558980, 750210, 838470, 950266, 1425399, 1500420, 1676940, 1900532, 2375665, 2850798, 4751330, 5701596, 7126995, 9502660, 14253990, 28507980]

約数ペア:

[(1, 28507980), (2, 14253990), (3, 9502660), (4, 7126995), (5, 5701596), (6, 4751330), (10, 2850798), (12, 2375665), (15, 1900532), (17, 1676940), (19, 1500420), (20, 1425399), (30, 950266), (34, 838470), (38, 750210), (51, 558980), (57, 500140), (60, 475133), (68, 419235), (76, 375105), (85, 335388), (95, 300084), (102, 279490), (114, 250070), (170, 167694), (190, 150042), (204, 139745), (228, 125035), (255, 111796), (285, 100028), (323, 88260), (340, 83847), (380, 75021), (510, 55898), (570, 50014), (646, 44130), (969, 29420), (1020, 27949), (1140, 25007), (1292, 22065), (1471, 19380), (1615, 17652), (1938, 14710), (2942, 9690), (3230, 8826), (3876, 7355), (4413, 6460), (4845, 5884)]