19790550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1$

素因数の和:247

約数の個数: 144

約数和(自身を含む): 60933600

約数和(自身を除く): 41143050

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 25, 26, 30, 34, 39, 45, 50, 51, 65, 75, 78, 85, 90, 102, 117, 130, 150, 153, 170, 195, 199, 221, 225, 234, 255, 306, 325, 390, 398, 425, 442, 450, 510, 585, 597, 650, 663, 765, 850, 975, 995, 1105, 1170, 1194, 1275, 1326, 1530, 1791, 1950, 1989, 1990, 2210, 2550, 2587, 2925, 2985, 3315, 3383, 3582, 3825, 3978, 4975, 5174, 5525, 5850, 5970, 6630, 6766, 7650, 7761, 8955, 9945, 9950, 10149, 11050, 12935, 14925, 15522, 16575, 16915, 17910, 19890, 20298, 23283, 25870, 29850, 30447, 33150, 33830, 38805, 43979, 44775, 46566, 49725, 50745, 60894, 64675, 77610, 84575, 87958, 89550, 99450, 101490, 116415, 129350, 131937, 152235, 169150, 194025, 219895, 232830, 253725, 263874, 304470, 388050, 395811, 439790, 507450, 582075, 659685, 761175, 791622, 1099475, 1164150, 1319370, 1522350, 1979055, 2198950, 3298425, 3958110, 6596850, 9895275, 19790550]

約数ペア:

[(1, 19790550), (2, 9895275), (3, 6596850), (5, 3958110), (6, 3298425), (9, 2198950), (10, 1979055), (13, 1522350), (15, 1319370), (17, 1164150), (18, 1099475), (25, 791622), (26, 761175), (30, 659685), (34, 582075), (39, 507450), (45, 439790), (50, 395811), (51, 388050), (65, 304470), (75, 263874), (78, 253725), (85, 232830), (90, 219895), (102, 194025), (117, 169150), (130, 152235), (150, 131937), (153, 129350), (170, 116415), (195, 101490), (199, 99450), (221, 89550), (225, 87958), (234, 84575), (255, 77610), (306, 64675), (325, 60894), (390, 50745), (398, 49725), (425, 46566), (442, 44775), (450, 43979), (510, 38805), (585, 33830), (597, 33150), (650, 30447), (663, 29850), (765, 25870), (850, 23283), (975, 20298), (995, 19890), (1105, 17910), (1170, 16915), (1194, 16575), (1275, 15522), (1326, 14925), (1530, 12935), (1791, 11050), (1950, 10149), (1989, 9950), (1990, 9945), (2210, 8955), (2550, 7761), (2587, 7650), (2925, 6766), (2985, 6630), (3315, 5970), (3383, 5850), (3582, 5525), (3825, 5174), (3978, 4975)]