208728240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{17749}}^1$

素因数の和:17779

約数の個数: 120

約数和(自身を含む): 752742000

約数和(自身を除く): 544013760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 392, 420, 490, 560, 588, 735, 784, 840, 980, 1176, 1470, 1680, 1960, 2352, 2940, 3920, 5880, 11760, 17749, 35498, 53247, 70996, 88745, 106494, 124243, 141992, 177490, 212988, 248486, 266235, 283984, 354980, 372729, 425976, 496972, 532470, 621215, 709960, 745458, 851952, 869701, 993944, 1064940, 1242430, 1419920, 1490916, 1739402, 1863645, 1987888, 2129880, 2484860, 2609103, 2981832, 3478804, 3727290, 4259760, 4348505, 4969720, 5218206, 5963664, 6957608, 7454580, 8697010, 9939440, 10436412, 13045515, 13915216, 14909160, 17394020, 20872824, 26091030, 29818320, 34788040, 41745648, 52182060, 69576080, 104364120, 208728240]

約数ペア:

[(1, 208728240), (2, 104364120), (3, 69576080), (4, 52182060), (5, 41745648), (6, 34788040), (7, 29818320), (8, 26091030), (10, 20872824), (12, 17394020), (14, 14909160), (15, 13915216), (16, 13045515), (20, 10436412), (21, 9939440), (24, 8697010), (28, 7454580), (30, 6957608), (35, 5963664), (40, 5218206), (42, 4969720), (48, 4348505), (49, 4259760), (56, 3727290), (60, 3478804), (70, 2981832), (80, 2609103), (84, 2484860), (98, 2129880), (105, 1987888), (112, 1863645), (120, 1739402), (140, 1490916), (147, 1419920), (168, 1242430), (196, 1064940), (210, 993944), (240, 869701), (245, 851952), (280, 745458), (294, 709960), (336, 621215), (392, 532470), (420, 496972), (490, 425976), (560, 372729), (588, 354980), (735, 283984), (784, 266235), (840, 248486), (980, 212988), (1176, 177490), (1470, 141992), (1680, 124243), (1960, 106494), (2352, 88745), (2940, 70996), (3920, 53247), (5880, 35498), (11760, 17749)]