18438180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:497

約数の個数: 96

約数和(自身を含む): 55738368

約数和(自身を除く): 37300188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 31, 46, 60, 62, 69, 92, 93, 115, 124, 138, 155, 186, 230, 276, 310, 345, 372, 431, 460, 465, 620, 690, 713, 862, 930, 1293, 1380, 1426, 1724, 1860, 2139, 2155, 2586, 2852, 3565, 4278, 4310, 5172, 6465, 7130, 8556, 8620, 9913, 10695, 12930, 13361, 14260, 19826, 21390, 25860, 26722, 29739, 39652, 40083, 42780, 49565, 53444, 59478, 66805, 80166, 99130, 118956, 133610, 148695, 160332, 198260, 200415, 267220, 297390, 307303, 400830, 594780, 614606, 801660, 921909, 1229212, 1536515, 1843818, 3073030, 3687636, 4609545, 6146060, 9219090, 18438180]

約数ペア:

[(1, 18438180), (2, 9219090), (3, 6146060), (4, 4609545), (5, 3687636), (6, 3073030), (10, 1843818), (12, 1536515), (15, 1229212), (20, 921909), (23, 801660), (30, 614606), (31, 594780), (46, 400830), (60, 307303), (62, 297390), (69, 267220), (92, 200415), (93, 198260), (115, 160332), (124, 148695), (138, 133610), (155, 118956), (186, 99130), (230, 80166), (276, 66805), (310, 59478), (345, 53444), (372, 49565), (431, 42780), (460, 40083), (465, 39652), (620, 29739), (690, 26722), (713, 25860), (862, 21390), (930, 19826), (1293, 14260), (1380, 13361), (1426, 12930), (1724, 10695), (1860, 9913), (2139, 8620), (2155, 8556), (2586, 7130), (2852, 6465), (3565, 5172), (4278, 4310)]