777849280

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{647}}^1$

素因数の和:711

約数の個数: 168

約数和(自身を含む): 2122249248

約数和(自身を除く): 1344399968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 130, 136, 160, 170, 208, 221, 260, 272, 289, 320, 340, 416, 442, 520, 544, 578, 647, 680, 832, 884, 1040, 1088, 1105, 1156, 1294, 1360, 1445, 1768, 2080, 2210, 2312, 2588, 2720, 2890, 3235, 3536, 3757, 4160, 4420, 4624, 5176, 5440, 5780, 6470, 7072, 7514, 8411, 8840, 9248, 10352, 10999, 11560, 12940, 14144, 15028, 16822, 17680, 18496, 18785, 20704, 21998, 23120, 25880, 30056, 33644, 35360, 37570, 41408, 42055, 43996, 46240, 51760, 54995, 60112, 67288, 70720, 75140, 84110, 87992, 92480, 103520, 109990, 120224, 134576, 142987, 150280, 168220, 175984, 186983, 207040, 219980, 240448, 269152, 285974, 300560, 336440, 351968, 373966, 439960, 538304, 571948, 601120, 672880, 703936, 714935, 747932, 879920, 934915, 1143896, 1202240, 1345760, 1429870, 1495864, 1759840, 1869830, 2287792, 2430779, 2691520, 2859740, 2991728, 3519680, 3739660, 4575584, 4861558, 5719480, 5983456, 7479320, 9151168, 9723116, 11438960, 11966912, 12153895, 14958640, 19446232, 22877920, 24307790, 29917280, 38892464, 45755840, 48615580, 59834560, 77784928, 97231160, 155569856, 194462320, 388924640, 777849280]

約数ペア:

[(1, 777849280), (2, 388924640), (4, 194462320), (5, 155569856), (8, 97231160), (10, 77784928), (13, 59834560), (16, 48615580), (17, 45755840), (20, 38892464), (26, 29917280), (32, 24307790), (34, 22877920), (40, 19446232), (52, 14958640), (64, 12153895), (65, 11966912), (68, 11438960), (80, 9723116), (85, 9151168), (104, 7479320), (130, 5983456), (136, 5719480), (160, 4861558), (170, 4575584), (208, 3739660), (221, 3519680), (260, 2991728), (272, 2859740), (289, 2691520), (320, 2430779), (340, 2287792), (416, 1869830), (442, 1759840), (520, 1495864), (544, 1429870), (578, 1345760), (647, 1202240), (680, 1143896), (832, 934915), (884, 879920), (1040, 747932), (1088, 714935), (1105, 703936), (1156, 672880), (1294, 601120), (1360, 571948), (1445, 538304), (1768, 439960), (2080, 373966), (2210, 351968), (2312, 336440), (2588, 300560), (2720, 285974), (2890, 269152), (3235, 240448), (3536, 219980), (3757, 207040), (4160, 186983), (4420, 175984), (4624, 168220), (5176, 150280), (5440, 142987), (5780, 134576), (6470, 120224), (7072, 109990), (7514, 103520), (8411, 92480), (8840, 87992), (9248, 84110), (10352, 75140), (10999, 70720), (11560, 67288), (12940, 60112), (14144, 54995), (15028, 51760), (16822, 46240), (17680, 43996), (18496, 42055), (18785, 41408), (20704, 37570), (21998, 35360), (23120, 33644), (25880, 30056)]