821940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:141

約数の個数: 96

約数和(自身を含む): 2795520

約数和(自身を除く): 1973580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 103, 105, 114, 133, 140, 190, 206, 210, 228, 266, 285, 309, 380, 399, 412, 420, 515, 532, 570, 618, 665, 721, 798, 1030, 1140, 1236, 1330, 1442, 1545, 1596, 1957, 1995, 2060, 2163, 2660, 2884, 3090, 3605, 3914, 3990, 4326, 5871, 6180, 7210, 7828, 7980, 8652, 9785, 10815, 11742, 13699, 14420, 19570, 21630, 23484, 27398, 29355, 39140, 41097, 43260, 54796, 58710, 68495, 82194, 117420, 136990, 164388, 205485, 273980, 410970, 821940]

約数ペア:

[(1, 821940), (2, 410970), (3, 273980), (4, 205485), (5, 164388), (6, 136990), (7, 117420), (10, 82194), (12, 68495), (14, 58710), (15, 54796), (19, 43260), (20, 41097), (21, 39140), (28, 29355), (30, 27398), (35, 23484), (38, 21630), (42, 19570), (57, 14420), (60, 13699), (70, 11742), (76, 10815), (84, 9785), (95, 8652), (103, 7980), (105, 7828), (114, 7210), (133, 6180), (140, 5871), (190, 4326), (206, 3990), (210, 3914), (228, 3605), (266, 3090), (285, 2884), (309, 2660), (380, 2163), (399, 2060), (412, 1995), (420, 1957), (515, 1596), (532, 1545), (570, 1442), (618, 1330), (665, 1236), (721, 1140), (798, 1030)]