138307120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{257}}^1$

素因数の和:339

約数の個数: 120

約数和(自身を含む): 381216672

約数和(自身を除く): 242909552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 257, 280, 310, 434, 496, 514, 560, 620, 868, 961, 1028, 1085, 1240, 1285, 1736, 1799, 1922, 2056, 2170, 2480, 2570, 3472, 3598, 3844, 4112, 4340, 4805, 5140, 6727, 7196, 7688, 7967, 8680, 8995, 9610, 10280, 13454, 14392, 15376, 15934, 17360, 17990, 19220, 20560, 26908, 28784, 31868, 33635, 35980, 38440, 39835, 53816, 55769, 63736, 67270, 71960, 76880, 79670, 107632, 111538, 127472, 134540, 143920, 159340, 223076, 246977, 269080, 278845, 318680, 446152, 493954, 538160, 557690, 637360, 892304, 987908, 1115380, 1234885, 1728839, 1975816, 2230760, 2469770, 3457678, 3951632, 4461520, 4939540, 6915356, 8644195, 9879080, 13830712, 17288390, 19758160, 27661424, 34576780, 69153560, 138307120]

約数ペア:

[(1, 138307120), (2, 69153560), (4, 34576780), (5, 27661424), (7, 19758160), (8, 17288390), (10, 13830712), (14, 9879080), (16, 8644195), (20, 6915356), (28, 4939540), (31, 4461520), (35, 3951632), (40, 3457678), (56, 2469770), (62, 2230760), (70, 1975816), (80, 1728839), (112, 1234885), (124, 1115380), (140, 987908), (155, 892304), (217, 637360), (248, 557690), (257, 538160), (280, 493954), (310, 446152), (434, 318680), (496, 278845), (514, 269080), (560, 246977), (620, 223076), (868, 159340), (961, 143920), (1028, 134540), (1085, 127472), (1240, 111538), (1285, 107632), (1736, 79670), (1799, 76880), (1922, 71960), (2056, 67270), (2170, 63736), (2480, 55769), (2570, 53816), (3472, 39835), (3598, 38440), (3844, 35980), (4112, 33635), (4340, 31868), (4805, 28784), (5140, 26908), (6727, 20560), (7196, 19220), (7688, 17990), (7967, 17360), (8680, 15934), (8995, 15376), (9610, 14392), (10280, 13454)]