27877990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:517

約数の個数: 64

約数和(自身を含む): 61378560

約数和(自身を除く): 33500570

約数列:

[1, 2, 5, 7, 10, 14, 29, 31, 35, 58, 62, 70, 145, 155, 203, 217, 290, 310, 406, 434, 443, 886, 899, 1015, 1085, 1798, 2030, 2170, 2215, 3101, 4430, 4495, 6202, 6293, 8990, 12586, 12847, 13733, 15505, 25694, 27466, 31010, 31465, 62930, 64235, 68665, 89929, 96131, 128470, 137330, 179858, 192262, 398257, 449645, 480655, 796514, 899290, 961310, 1991285, 2787799, 3982570, 5575598, 13938995, 27877990]

約数ペア:

[(1, 27877990), (2, 13938995), (5, 5575598), (7, 3982570), (10, 2787799), (14, 1991285), (29, 961310), (31, 899290), (35, 796514), (58, 480655), (62, 449645), (70, 398257), (145, 192262), (155, 179858), (203, 137330), (217, 128470), (290, 96131), (310, 89929), (406, 68665), (434, 64235), (443, 62930), (886, 31465), (899, 31010), (1015, 27466), (1085, 25694), (1798, 15505), (2030, 13733), (2170, 12847), (2215, 12586), (3101, 8990), (4430, 6293), (4495, 6202)]