638342080

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{281}}^1$

素因数の和:558

約数の個数: 112

約数和(自身を含む): 1581546240

約数和(自身を除く): 943204160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 229, 248, 281, 310, 320, 458, 496, 562, 620, 916, 992, 1124, 1145, 1240, 1405, 1832, 1984, 2248, 2290, 2480, 2810, 3664, 4496, 4580, 4960, 5620, 7099, 7328, 8711, 8992, 9160, 9920, 11240, 14198, 14656, 17422, 17984, 18320, 22480, 28396, 34844, 35495, 36640, 43555, 44960, 56792, 64349, 69688, 70990, 73280, 87110, 89920, 113584, 128698, 139376, 141980, 174220, 227168, 257396, 278752, 283960, 321745, 348440, 454336, 514792, 557504, 567920, 643490, 696880, 1029584, 1135840, 1286980, 1393760, 1994819, 2059168, 2271680, 2573960, 2787520, 3989638, 4118336, 5147920, 7979276, 9974095, 10295840, 15958552, 19948190, 20591680, 31917104, 39896380, 63834208, 79792760, 127668416, 159585520, 319171040, 638342080]

約数ペア:

[(1, 638342080), (2, 319171040), (4, 159585520), (5, 127668416), (8, 79792760), (10, 63834208), (16, 39896380), (20, 31917104), (31, 20591680), (32, 19948190), (40, 15958552), (62, 10295840), (64, 9974095), (80, 7979276), (124, 5147920), (155, 4118336), (160, 3989638), (229, 2787520), (248, 2573960), (281, 2271680), (310, 2059168), (320, 1994819), (458, 1393760), (496, 1286980), (562, 1135840), (620, 1029584), (916, 696880), (992, 643490), (1124, 567920), (1145, 557504), (1240, 514792), (1405, 454336), (1832, 348440), (1984, 321745), (2248, 283960), (2290, 278752), (2480, 257396), (2810, 227168), (3664, 174220), (4496, 141980), (4580, 139376), (4960, 128698), (5620, 113584), (7099, 89920), (7328, 87110), (8711, 73280), (8992, 70990), (9160, 69688), (9920, 64349), (11240, 56792), (14198, 44960), (14656, 43555), (17422, 36640), (17984, 35495), (18320, 34844), (22480, 28396)]