208527280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:279

約数の個数: 160

約数和(自身を含む): 561839040

約数和(自身を除く): 353311760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 61, 65, 76, 80, 95, 104, 122, 130, 152, 173, 190, 208, 244, 247, 260, 304, 305, 346, 380, 488, 494, 520, 610, 692, 760, 793, 865, 976, 988, 1040, 1159, 1220, 1235, 1384, 1520, 1586, 1730, 1976, 2249, 2318, 2440, 2470, 2768, 3172, 3287, 3460, 3952, 3965, 4498, 4636, 4880, 4940, 5795, 6344, 6574, 6920, 7930, 8996, 9272, 9880, 10553, 11245, 11590, 12688, 13148, 13840, 15067, 15860, 16435, 17992, 18544, 19760, 21106, 22490, 23180, 26296, 30134, 31720, 32870, 35984, 42212, 42731, 44980, 46360, 52592, 52765, 60268, 63440, 65740, 75335, 84424, 85462, 89960, 92720, 105530, 120536, 131480, 137189, 150670, 168848, 170924, 179920, 200507, 211060, 213655, 241072, 262960, 274378, 301340, 341848, 401014, 422120, 427310, 548756, 602680, 683696, 685945, 802028, 844240, 854620, 1002535, 1097512, 1205360, 1371890, 1604056, 1709240, 2005070, 2195024, 2606591, 2743780, 3208112, 3418480, 4010140, 5213182, 5487560, 8020280, 10426364, 10975120, 13032955, 16040560, 20852728, 26065910, 41705456, 52131820, 104263640, 208527280]

約数ペア:

[(1, 208527280), (2, 104263640), (4, 52131820), (5, 41705456), (8, 26065910), (10, 20852728), (13, 16040560), (16, 13032955), (19, 10975120), (20, 10426364), (26, 8020280), (38, 5487560), (40, 5213182), (52, 4010140), (61, 3418480), (65, 3208112), (76, 2743780), (80, 2606591), (95, 2195024), (104, 2005070), (122, 1709240), (130, 1604056), (152, 1371890), (173, 1205360), (190, 1097512), (208, 1002535), (244, 854620), (247, 844240), (260, 802028), (304, 685945), (305, 683696), (346, 602680), (380, 548756), (488, 427310), (494, 422120), (520, 401014), (610, 341848), (692, 301340), (760, 274378), (793, 262960), (865, 241072), (976, 213655), (988, 211060), (1040, 200507), (1159, 179920), (1220, 170924), (1235, 168848), (1384, 150670), (1520, 137189), (1586, 131480), (1730, 120536), (1976, 105530), (2249, 92720), (2318, 89960), (2440, 85462), (2470, 84424), (2768, 75335), (3172, 65740), (3287, 63440), (3460, 60268), (3952, 52765), (3965, 52592), (4498, 46360), (4636, 44980), (4880, 42731), (4940, 42212), (5795, 35984), (6344, 32870), (6574, 31720), (6920, 30134), (7930, 26296), (8996, 23180), (9272, 22490), (9880, 21106), (10553, 19760), (11245, 18544), (11590, 17992), (12688, 16435), (13148, 15860), (13840, 15067)]