209491884

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{619}}^1$

素因数の和:732

約数の個数: 144

約数和(自身を含む): 649958400

約数和(自身を除く): 440466516

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 63, 68, 79, 84, 102, 119, 126, 153, 158, 204, 237, 238, 252, 306, 316, 357, 474, 476, 553, 612, 619, 711, 714, 948, 1071, 1106, 1238, 1343, 1422, 1428, 1659, 1857, 2142, 2212, 2476, 2686, 2844, 3318, 3714, 4029, 4284, 4333, 4977, 5372, 5571, 6636, 7428, 8058, 8666, 9401, 9954, 10523, 11142, 12087, 12999, 16116, 17332, 18802, 19908, 21046, 22284, 24174, 25998, 28203, 31569, 37604, 38997, 42092, 48348, 48901, 51996, 56406, 63138, 73661, 77994, 84609, 94707, 97802, 112812, 126276, 146703, 147322, 155988, 169218, 189414, 195604, 220983, 293406, 294644, 338436, 342307, 378828, 440109, 441966, 586812, 662949, 684614, 831317, 880218, 883932, 1026921, 1325898, 1369228, 1662634, 1760436, 2053842, 2493951, 2651796, 3080763, 3325268, 4107684, 4987902, 5819219, 6161526, 7481853, 9975804, 11638438, 12323052, 14963706, 17457657, 23276876, 29927412, 34915314, 52372971, 69830628, 104745942, 209491884]

約数ペア:

[(1, 209491884), (2, 104745942), (3, 69830628), (4, 52372971), (6, 34915314), (7, 29927412), (9, 23276876), (12, 17457657), (14, 14963706), (17, 12323052), (18, 11638438), (21, 9975804), (28, 7481853), (34, 6161526), (36, 5819219), (42, 4987902), (51, 4107684), (63, 3325268), (68, 3080763), (79, 2651796), (84, 2493951), (102, 2053842), (119, 1760436), (126, 1662634), (153, 1369228), (158, 1325898), (204, 1026921), (237, 883932), (238, 880218), (252, 831317), (306, 684614), (316, 662949), (357, 586812), (474, 441966), (476, 440109), (553, 378828), (612, 342307), (619, 338436), (711, 294644), (714, 293406), (948, 220983), (1071, 195604), (1106, 189414), (1238, 169218), (1343, 155988), (1422, 147322), (1428, 146703), (1659, 126276), (1857, 112812), (2142, 97802), (2212, 94707), (2476, 84609), (2686, 77994), (2844, 73661), (3318, 63138), (3714, 56406), (4029, 51996), (4284, 48901), (4333, 48348), (4977, 42092), (5372, 38997), (5571, 37604), (6636, 31569), (7428, 28203), (8058, 25998), (8666, 24174), (9401, 22284), (9954, 21046), (10523, 19908), (11142, 18802), (12087, 17332), (12999, 16116)]