28857960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4219}}^1$

素因数の和:4255

約数の個数: 96

約数和(自身を含む): 98748000

約数和(自身を除く): 69890040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 3420, 4219, 6840, 8438, 12657, 16876, 21095, 25314, 33752, 37971, 42190, 50628, 63285, 75942, 80161, 84380, 101256, 126570, 151884, 160322, 168760, 189855, 240483, 253140, 303768, 320644, 379710, 400805, 480966, 506280, 641288, 721449, 759420, 801610, 961932, 1202415, 1442898, 1518840, 1603220, 1923864, 2404830, 2885796, 3206440, 3607245, 4809660, 5771592, 7214490, 9619320, 14428980, 28857960]

約数ペア:

[(1, 28857960), (2, 14428980), (3, 9619320), (4, 7214490), (5, 5771592), (6, 4809660), (8, 3607245), (9, 3206440), (10, 2885796), (12, 2404830), (15, 1923864), (18, 1603220), (19, 1518840), (20, 1442898), (24, 1202415), (30, 961932), (36, 801610), (38, 759420), (40, 721449), (45, 641288), (57, 506280), (60, 480966), (72, 400805), (76, 379710), (90, 320644), (95, 303768), (114, 253140), (120, 240483), (152, 189855), (171, 168760), (180, 160322), (190, 151884), (228, 126570), (285, 101256), (342, 84380), (360, 80161), (380, 75942), (456, 63285), (570, 50628), (684, 42190), (760, 37971), (855, 33752), (1140, 25314), (1368, 21095), (1710, 16876), (2280, 12657), (3420, 8438), (4219, 6840)]