408049900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 979937280

約数和(自身を除く): 571887380

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 31, 46, 50, 59, 62, 92, 97, 100, 115, 118, 124, 155, 194, 230, 236, 295, 310, 388, 460, 485, 575, 590, 620, 713, 775, 970, 1150, 1180, 1357, 1426, 1475, 1550, 1829, 1940, 2231, 2300, 2425, 2714, 2852, 2950, 3007, 3100, 3565, 3658, 4462, 4850, 5428, 5723, 5900, 6014, 6785, 7130, 7316, 8924, 9145, 9700, 11155, 11446, 12028, 13570, 14260, 15035, 17825, 18290, 22310, 22892, 27140, 28615, 30070, 33925, 35650, 36580, 42067, 44620, 45725, 55775, 57230, 60140, 67850, 69161, 71300, 75175, 84134, 91450, 111550, 114460, 131629, 135700, 138322, 143075, 150350, 168268, 177413, 182900, 210335, 223100, 263258, 276644, 286150, 300700, 345805, 354826, 420670, 526516, 572300, 658145, 691610, 709652, 841340, 887065, 1051675, 1316290, 1383220, 1729025, 1774130, 2103350, 2632580, 3290725, 3458050, 3548260, 4080499, 4206700, 4435325, 6581450, 6916100, 8160998, 8870650, 13162900, 16321996, 17741300, 20402495, 40804990, 81609980, 102012475, 204024950, 408049900]

約数ペア:

[(1, 408049900), (2, 204024950), (4, 102012475), (5, 81609980), (10, 40804990), (20, 20402495), (23, 17741300), (25, 16321996), (31, 13162900), (46, 8870650), (50, 8160998), (59, 6916100), (62, 6581450), (92, 4435325), (97, 4206700), (100, 4080499), (115, 3548260), (118, 3458050), (124, 3290725), (155, 2632580), (194, 2103350), (230, 1774130), (236, 1729025), (295, 1383220), (310, 1316290), (388, 1051675), (460, 887065), (485, 841340), (575, 709652), (590, 691610), (620, 658145), (713, 572300), (775, 526516), (970, 420670), (1150, 354826), (1180, 345805), (1357, 300700), (1426, 286150), (1475, 276644), (1550, 263258), (1829, 223100), (1940, 210335), (2231, 182900), (2300, 177413), (2425, 168268), (2714, 150350), (2852, 143075), (2950, 138322), (3007, 135700), (3100, 131629), (3565, 114460), (3658, 111550), (4462, 91450), (4850, 84134), (5428, 75175), (5723, 71300), (5900, 69161), (6014, 67850), (6785, 60140), (7130, 57230), (7316, 55775), (8924, 45725), (9145, 44620), (9700, 42067), (11155, 36580), (11446, 35650), (12028, 33925), (13570, 30070), (14260, 28615), (15035, 27140), (17825, 22892), (18290, 22310)]