77770420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:234

約数の個数: 144

約数和(自身を含む): 213978240

約数和(自身を除く): 136207820

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 52, 65, 70, 76, 91, 95, 130, 133, 140, 169, 173, 182, 190, 247, 260, 266, 338, 346, 364, 380, 455, 494, 532, 665, 676, 692, 845, 865, 910, 988, 1183, 1211, 1235, 1330, 1690, 1729, 1730, 1820, 2249, 2366, 2422, 2470, 2660, 3211, 3287, 3380, 3458, 3460, 4498, 4732, 4844, 4940, 5915, 6055, 6422, 6574, 6916, 8645, 8996, 11245, 11830, 12110, 12844, 13148, 15743, 16055, 16435, 17290, 22477, 22490, 23009, 23660, 24220, 29237, 31486, 32110, 32870, 34580, 42731, 44954, 44980, 46018, 58474, 62972, 64220, 65740, 78715, 85462, 89908, 92036, 112385, 115045, 116948, 146185, 157430, 170924, 204659, 213655, 224770, 230090, 292370, 299117, 314860, 409318, 427310, 449540, 460180, 555503, 584740, 598234, 818636, 854620, 1023295, 1111006, 1196468, 1495585, 2046590, 2222012, 2777515, 2991170, 3888521, 4093180, 5555030, 5982340, 7777042, 11110060, 15554084, 19442605, 38885210, 77770420]

約数ペア:

[(1, 77770420), (2, 38885210), (4, 19442605), (5, 15554084), (7, 11110060), (10, 7777042), (13, 5982340), (14, 5555030), (19, 4093180), (20, 3888521), (26, 2991170), (28, 2777515), (35, 2222012), (38, 2046590), (52, 1495585), (65, 1196468), (70, 1111006), (76, 1023295), (91, 854620), (95, 818636), (130, 598234), (133, 584740), (140, 555503), (169, 460180), (173, 449540), (182, 427310), (190, 409318), (247, 314860), (260, 299117), (266, 292370), (338, 230090), (346, 224770), (364, 213655), (380, 204659), (455, 170924), (494, 157430), (532, 146185), (665, 116948), (676, 115045), (692, 112385), (845, 92036), (865, 89908), (910, 85462), (988, 78715), (1183, 65740), (1211, 64220), (1235, 62972), (1330, 58474), (1690, 46018), (1729, 44980), (1730, 44954), (1820, 42731), (2249, 34580), (2366, 32870), (2422, 32110), (2470, 31486), (2660, 29237), (3211, 24220), (3287, 23660), (3380, 23009), (3458, 22490), (3460, 22477), (4498, 17290), (4732, 16435), (4844, 16055), (4940, 15743), (5915, 13148), (6055, 12844), (6422, 12110), (6574, 11830), (6916, 11245), (8645, 8996)]