79777880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:170

約数の個数: 192

約数和(自身を含む): 234420480

約数和(自身を除く): 154642600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 49, 52, 56, 62, 65, 70, 91, 98, 101, 104, 124, 130, 140, 155, 182, 196, 202, 217, 245, 248, 260, 280, 310, 364, 392, 403, 404, 434, 455, 490, 505, 520, 620, 637, 707, 728, 806, 808, 868, 910, 980, 1010, 1085, 1240, 1274, 1313, 1414, 1519, 1612, 1736, 1820, 1960, 2015, 2020, 2170, 2548, 2626, 2821, 2828, 3038, 3131, 3185, 3224, 3535, 3640, 4030, 4040, 4340, 4949, 5096, 5252, 5642, 5656, 6076, 6262, 6370, 6565, 7070, 7595, 8060, 8680, 9191, 9898, 10504, 11284, 12152, 12524, 12740, 13130, 14105, 14140, 15190, 15655, 16120, 18382, 19747, 19796, 21917, 22568, 24745, 25048, 25480, 26260, 28210, 28280, 30380, 31310, 36764, 39494, 39592, 40703, 43834, 45955, 49490, 52520, 56420, 60760, 62620, 64337, 73528, 78988, 81406, 87668, 91910, 98735, 98980, 109585, 112840, 125240, 128674, 153419, 157976, 162812, 175336, 183820, 197470, 197960, 203515, 219170, 257348, 284921, 306838, 321685, 325624, 367640, 394940, 407030, 438340, 514696, 569842, 613676, 643370, 767095, 789880, 814060, 876680, 1139684, 1227352, 1286740, 1424605, 1534190, 1628120, 1994447, 2279368, 2573480, 2849210, 3068380, 3988894, 5698420, 6136760, 7977788, 9972235, 11396840, 15955576, 19944470, 39888940, 79777880]

約数ペア:

[(1, 79777880), (2, 39888940), (4, 19944470), (5, 15955576), (7, 11396840), (8, 9972235), (10, 7977788), (13, 6136760), (14, 5698420), (20, 3988894), (26, 3068380), (28, 2849210), (31, 2573480), (35, 2279368), (40, 1994447), (49, 1628120), (52, 1534190), (56, 1424605), (62, 1286740), (65, 1227352), (70, 1139684), (91, 876680), (98, 814060), (101, 789880), (104, 767095), (124, 643370), (130, 613676), (140, 569842), (155, 514696), (182, 438340), (196, 407030), (202, 394940), (217, 367640), (245, 325624), (248, 321685), (260, 306838), (280, 284921), (310, 257348), (364, 219170), (392, 203515), (403, 197960), (404, 197470), (434, 183820), (455, 175336), (490, 162812), (505, 157976), (520, 153419), (620, 128674), (637, 125240), (707, 112840), (728, 109585), (806, 98980), (808, 98735), (868, 91910), (910, 87668), (980, 81406), (1010, 78988), (1085, 73528), (1240, 64337), (1274, 62620), (1313, 60760), (1414, 56420), (1519, 52520), (1612, 49490), (1736, 45955), (1820, 43834), (1960, 40703), (2015, 39592), (2020, 39494), (2170, 36764), (2548, 31310), (2626, 30380), (2821, 28280), (2828, 28210), (3038, 26260), (3131, 25480), (3185, 25048), (3224, 24745), (3535, 22568), (3640, 21917), (4030, 19796), (4040, 19747), (4340, 18382), (4949, 16120), (5096, 15655), (5252, 15190), (5642, 14140), (5656, 14105), (6076, 13130), (6262, 12740), (6370, 12524), (6565, 12152), (7070, 11284), (7595, 10504), (8060, 9898), (8680, 9191)]