397183780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 1034578944

約数和(自身を除く): 637395164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 62, 70, 92, 115, 124, 140, 155, 161, 173, 217, 230, 310, 322, 346, 434, 460, 529, 620, 644, 692, 713, 805, 865, 868, 1058, 1085, 1211, 1426, 1610, 1730, 2116, 2170, 2422, 2645, 2852, 3220, 3460, 3565, 3703, 3979, 4340, 4844, 4991, 5290, 5363, 6055, 7130, 7406, 7958, 9982, 10580, 10726, 12110, 14260, 14812, 15916, 16399, 18515, 19895, 19964, 21452, 24220, 24955, 26815, 27853, 32798, 37030, 37541, 39790, 49910, 53630, 55706, 65596, 74060, 75082, 79580, 81995, 91517, 99820, 107260, 111412, 114793, 123349, 139265, 150164, 163990, 183034, 187705, 229586, 246698, 278530, 327980, 366068, 375410, 457585, 459172, 493396, 557060, 573965, 616745, 640619, 750820, 863443, 915170, 1147930, 1233490, 1281238, 1726886, 1830340, 2295860, 2466980, 2562476, 2837027, 3203095, 3453772, 4317215, 5674054, 6406190, 8634430, 11348108, 12812380, 14185135, 17268860, 19859189, 28370270, 39718378, 56740540, 79436756, 99295945, 198591890, 397183780]

約数ペア:

[(1, 397183780), (2, 198591890), (4, 99295945), (5, 79436756), (7, 56740540), (10, 39718378), (14, 28370270), (20, 19859189), (23, 17268860), (28, 14185135), (31, 12812380), (35, 11348108), (46, 8634430), (62, 6406190), (70, 5674054), (92, 4317215), (115, 3453772), (124, 3203095), (140, 2837027), (155, 2562476), (161, 2466980), (173, 2295860), (217, 1830340), (230, 1726886), (310, 1281238), (322, 1233490), (346, 1147930), (434, 915170), (460, 863443), (529, 750820), (620, 640619), (644, 616745), (692, 573965), (713, 557060), (805, 493396), (865, 459172), (868, 457585), (1058, 375410), (1085, 366068), (1211, 327980), (1426, 278530), (1610, 246698), (1730, 229586), (2116, 187705), (2170, 183034), (2422, 163990), (2645, 150164), (2852, 139265), (3220, 123349), (3460, 114793), (3565, 111412), (3703, 107260), (3979, 99820), (4340, 91517), (4844, 81995), (4991, 79580), (5290, 75082), (5363, 74060), (6055, 65596), (7130, 55706), (7406, 53630), (7958, 49910), (9982, 39790), (10580, 37541), (10726, 37030), (12110, 32798), (14260, 27853), (14812, 26815), (15916, 24955), (16399, 24220), (18515, 21452), (19895, 19964)]