78788360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:391

約数の個数: 128

約数和(自身を含む): 217036800

約数和(自身を除く): 138248440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 31, 35, 40, 56, 58, 62, 70, 116, 124, 140, 145, 155, 203, 217, 232, 248, 280, 290, 310, 313, 406, 434, 580, 620, 626, 812, 868, 899, 1015, 1085, 1160, 1240, 1252, 1565, 1624, 1736, 1798, 2030, 2170, 2191, 2504, 3130, 3596, 4060, 4340, 4382, 4495, 6260, 6293, 7192, 8120, 8680, 8764, 8990, 9077, 9703, 10955, 12520, 12586, 17528, 17980, 18154, 19406, 21910, 25172, 31465, 35960, 36308, 38812, 43820, 45385, 48515, 50344, 62930, 63539, 67921, 72616, 77624, 87640, 90770, 97030, 125860, 127078, 135842, 181540, 194060, 251720, 254156, 271684, 281387, 317695, 339605, 363080, 388120, 508312, 543368, 562774, 635390, 679210, 1125548, 1270780, 1358420, 1406935, 1969709, 2251096, 2541560, 2716840, 2813870, 3939418, 5627740, 7878836, 9848545, 11255480, 15757672, 19697090, 39394180, 78788360]

約数ペア:

[(1, 78788360), (2, 39394180), (4, 19697090), (5, 15757672), (7, 11255480), (8, 9848545), (10, 7878836), (14, 5627740), (20, 3939418), (28, 2813870), (29, 2716840), (31, 2541560), (35, 2251096), (40, 1969709), (56, 1406935), (58, 1358420), (62, 1270780), (70, 1125548), (116, 679210), (124, 635390), (140, 562774), (145, 543368), (155, 508312), (203, 388120), (217, 363080), (232, 339605), (248, 317695), (280, 281387), (290, 271684), (310, 254156), (313, 251720), (406, 194060), (434, 181540), (580, 135842), (620, 127078), (626, 125860), (812, 97030), (868, 90770), (899, 87640), (1015, 77624), (1085, 72616), (1160, 67921), (1240, 63539), (1252, 62930), (1565, 50344), (1624, 48515), (1736, 45385), (1798, 43820), (2030, 38812), (2170, 36308), (2191, 35960), (2504, 31465), (3130, 25172), (3596, 21910), (4060, 19406), (4340, 18154), (4382, 17980), (4495, 17528), (6260, 12586), (6293, 12520), (7192, 10955), (8120, 9703), (8680, 9077), (8764, 8990)]