20467150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1$

素因数の和:250

約数の個数: 72

約数和(自身を含む): 44528400

約数和(自身を除く): 24061250

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 121, 170, 187, 199, 242, 275, 374, 398, 425, 550, 605, 850, 935, 995, 1210, 1870, 1990, 2057, 2189, 3025, 3383, 4114, 4378, 4675, 4975, 6050, 6766, 9350, 9950, 10285, 10945, 16915, 20570, 21890, 24079, 33830, 37213, 48158, 51425, 54725, 74426, 84575, 102850, 109450, 120395, 169150, 186065, 240790, 372130, 409343, 601975, 818686, 930325, 1203950, 1860650, 2046715, 4093430, 10233575, 20467150]

約数ペア:

[(1, 20467150), (2, 10233575), (5, 4093430), (10, 2046715), (11, 1860650), (17, 1203950), (22, 930325), (25, 818686), (34, 601975), (50, 409343), (55, 372130), (85, 240790), (110, 186065), (121, 169150), (170, 120395), (187, 109450), (199, 102850), (242, 84575), (275, 74426), (374, 54725), (398, 51425), (425, 48158), (550, 37213), (605, 33830), (850, 24079), (935, 21890), (995, 20570), (1210, 16915), (1870, 10945), (1990, 10285), (2057, 9950), (2189, 9350), (3025, 6766), (3383, 6050), (4114, 4975), (4378, 4675)]