77420980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 209139840

約数和(自身を除く): 131718860

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 59, 65, 70, 91, 98, 103, 118, 130, 140, 182, 196, 206, 236, 245, 260, 295, 364, 412, 413, 455, 490, 515, 590, 637, 721, 767, 826, 910, 980, 1030, 1180, 1274, 1339, 1442, 1534, 1652, 1820, 2060, 2065, 2548, 2678, 2884, 2891, 3068, 3185, 3605, 3835, 4130, 5047, 5356, 5369, 5782, 6077, 6370, 6695, 7210, 7670, 8260, 9373, 10094, 10738, 11564, 12154, 12740, 13390, 14420, 14455, 15340, 18746, 20188, 21476, 24308, 25235, 26780, 26845, 28910, 30385, 37492, 37583, 42539, 46865, 50470, 53690, 57820, 60770, 65611, 75166, 79001, 85078, 93730, 100940, 107380, 121540, 131222, 150332, 158002, 170156, 187460, 187915, 212695, 262444, 297773, 316004, 328055, 375830, 395005, 425390, 553007, 595546, 656110, 751660, 790010, 850780, 1106014, 1191092, 1312220, 1488865, 1580020, 2212028, 2765035, 2977730, 3871049, 5530070, 5955460, 7742098, 11060140, 15484196, 19355245, 38710490, 77420980]

約数ペア:

[(1, 77420980), (2, 38710490), (4, 19355245), (5, 15484196), (7, 11060140), (10, 7742098), (13, 5955460), (14, 5530070), (20, 3871049), (26, 2977730), (28, 2765035), (35, 2212028), (49, 1580020), (52, 1488865), (59, 1312220), (65, 1191092), (70, 1106014), (91, 850780), (98, 790010), (103, 751660), (118, 656110), (130, 595546), (140, 553007), (182, 425390), (196, 395005), (206, 375830), (236, 328055), (245, 316004), (260, 297773), (295, 262444), (364, 212695), (412, 187915), (413, 187460), (455, 170156), (490, 158002), (515, 150332), (590, 131222), (637, 121540), (721, 107380), (767, 100940), (826, 93730), (910, 85078), (980, 79001), (1030, 75166), (1180, 65611), (1274, 60770), (1339, 57820), (1442, 53690), (1534, 50470), (1652, 46865), (1820, 42539), (2060, 37583), (2065, 37492), (2548, 30385), (2678, 28910), (2884, 26845), (2891, 26780), (3068, 25235), (3185, 24308), (3605, 21476), (3835, 20188), (4130, 18746), (5047, 15340), (5356, 14455), (5369, 14420), (5782, 13390), (6077, 12740), (6370, 12154), (6695, 11564), (7210, 10738), (7670, 10094), (8260, 9373)]