8243830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 18247680

約数和(自身を除く): 10003850

約数列:

[1, 2, 5, 7, 10, 14, 29, 31, 35, 58, 62, 70, 131, 145, 155, 203, 217, 262, 290, 310, 406, 434, 655, 899, 917, 1015, 1085, 1310, 1798, 1834, 2030, 2170, 3799, 4061, 4495, 4585, 6293, 7598, 8122, 8990, 9170, 12586, 18995, 20305, 26593, 28427, 31465, 37990, 40610, 53186, 56854, 62930, 117769, 132965, 142135, 235538, 265930, 284270, 588845, 824383, 1177690, 1648766, 4121915, 8243830]

約数ペア:

[(1, 8243830), (2, 4121915), (5, 1648766), (7, 1177690), (10, 824383), (14, 588845), (29, 284270), (31, 265930), (35, 235538), (58, 142135), (62, 132965), (70, 117769), (131, 62930), (145, 56854), (155, 53186), (203, 40610), (217, 37990), (262, 31465), (290, 28427), (310, 26593), (406, 20305), (434, 18995), (655, 12586), (899, 9170), (917, 8990), (1015, 8122), (1085, 7598), (1310, 6293), (1798, 4585), (1834, 4495), (2030, 4061), (2170, 3799)]